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Re: [chuck-users] WvOut sample size (????????? ????????)
by јеромонах Виталије 26 Jan '15

26 Jan '15

Thank you Perry Cook, for your reply. I have found what was the source of my main problem. It had nothing to do with quality, or sample size of generated file. Actually I was working on files located on an USB memory stick, and the stick was plugged in a USB hub device located very near speaker. When ChucK was executing file there were no interference between the USB cable and speaker cable, but when I was playing recorded file from the same USB there were some interference between cables that sounded like cracks. When I copied generated file to my desktop and played it from there, cracks disappeared :-) Maybe this will help somebody else if one run into similar problem.

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Re: [chuck-users] WvOut sample size (????????? ????????)
by Perry Cook 24 Jan '15

24 Jan '15

It's likely just overloading and clipping on the output file. WvOut and WvOut2 must quantize to 16 bits to write out the file. So numbers that are greater than +/- 1.0 will overload. If this is really the problem (likely), then there's an easy fix. There's a method called fileGain() that sets an extra gain before the file is written out. The default is of course 1.0, but you can change it to anything. Example useage: MyPatch => WvOut bob => blackhole; "mywavfile.wav" => bob.wavFilename; 0.5 => bob.fileGain; // This is your friend for writing non-clipped files while (now < then) { // do whatever; } bob.closeFile(); Hope this helps. If not let us know and we'll dig deeper. PRC > On Jan 24, 2015, at 9:00 AM, chuck-users-request(a)lists.cs.princeton.edu wrote: > > Send chuck-users mailing list submissions to > chuck-users(a)lists.cs.princeton.edu > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > or, via email, send a message with subject or body 'help' to > chuck-users-request(a)lists.cs.princeton.edu > > You can reach the person managing the list at > chuck-users-owner(a)lists.cs.princeton.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of chuck-users digest..." > > > Today's Topics: > > 1. WvOut sample size (????????? ????????) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 23 Jan 2015 20:22:21 +0100 > From: ????????? ???????? <vitalije(a)kviziracija.net> > To: chuck-users(a)lists.cs.princeton.edu > Subject: [chuck-users] WvOut sample size > Message-ID: <54C29F6D.8070701(a)kviziracija.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > Hello, > I am a new member of this list. > I have made some ChucK program that sounds good when performed by ChucK > VM. However, when I record this music through WvOut in to file and later > play recorded file using system player, I hear some cracks (distortions, > noise). > It seems to me that it is some conversion taking place during recording. > In the documentation of WvOut class it is suggested that MATLAB file > format will write 64-bit floats. But even with that precision I get the > same sound in file. I have looked in to the source code and found that > every method of WvOut class (WvOut_ctrl_<filetype>Filename) opens file > with the same 16-bit sample-size (Stk::STK_SINT16). > > I have tried naively to change that parameter into Stk::STK_SINT32, and > recompiled successfully ChucK, but the quality of recorded sound was not > improved. Actually, file was again 16-bit signed encoded. > > What can I do to improve quality of recording. > > My computer is amd-64 Ubuntu 14.04. I have compiled ChucK with 'make > linux-alsa' command. > > PS: I tried to record sound from system sound-card by using some other > programs for recording, but with no success. Either ChucK could not > access sound-card or a recording program could not access sound-card. It > seems that ChucK insists on having exclusive rights over sound-card and > doesn't want to share it with other programs. Even if in my browser is > opened some site that uses sound, ChucK refuses to start. > > Vitalije > > > ------------------------------ > > _______________________________________________ > chuck-users mailing list > chuck-users(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > > > End of chuck-users Digest, Vol 114, Issue 4 > *******************************************

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WvOut sample size
by јеромонах Виталије 23 Jan '15

23 Jan '15

Hello, I am a new member of this list. I have made some ChucK program that sounds good when performed by ChucK VM. However, when I record this music through WvOut in to file and later play recorded file using system player, I hear some cracks (distortions, noise). It seems to me that it is some conversion taking place during recording. In the documentation of WvOut class it is suggested that MATLAB file format will write 64-bit floats. But even with that precision I get the same sound in file. I have looked in to the source code and found that every method of WvOut class (WvOut_ctrl_<filetype>Filename) opens file with the same 16-bit sample-size (Stk::STK_SINT16). I have tried naively to change that parameter into Stk::STK_SINT32, and recompiled successfully ChucK, but the quality of recorded sound was not improved. Actually, file was again 16-bit signed encoded. What can I do to improve quality of recording. My computer is amd-64 Ubuntu 14.04. I have compiled ChucK with 'make linux-alsa' command. PS: I tried to record sound from system sound-card by using some other programs for recording, but with no success. Either ChucK could not access sound-card or a recording program could not access sound-card. It seems that ChucK insists on having exclusive rights over sound-card and doesn't want to share it with other programs. Even if in my browser is opened some site that uses sound, ChucK refuses to start. Vitalije

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ICAD2015 - call for submission
by Visda Goudarzi 21 Jan '15

21 Jan '15

Dear all, (With apologies for cross posting, please distribute!) This is a reminder that the call for participation for ICAD15 is currently open. http://icad15.iem.at Call for Papers, Posters, Extended Abstracts, Music, Installations, and Workshops - ICAD 2015 “ICAD in Space: Interactive Spatial Sonification” The 21st International Conference on Auditory Display July 6 - 7 Workshops and Student Think Tank July 8 - 10 Conference University of Music and Performing Arts and Technical University of Graz, Austria. The conference is organised by the Institute of Electronic Music and Acoustics (IEM). IEM is one of the leading institutions in the field of audio engineering and computer music. As part of the University of Music and Performing Arts Graz, IEM is a multidisciplinary institution, whose general mission is to bridge the gap between science and the arts. As a unique characteristic, IEM focuses on sonification as part of its research in computer music. IEM facilities include laboratories and performance spaces such as CUBE, which are equipped with spatial audio and motion tracking systems. Since 2014, IEM hosts the Sonic Interaction Design (SID) lab, in which interactive sound systems are designed and evaluated. ICAD is a highly interdisciplinary conference with relevance to researchers, practitioners, artists, and graduate students working with sound to convey and explore information. The conference is unique in its specific focus on auditory displays and the range of interdisciplinary issues related to their use. Like its predecessors, ICAD15 will be a single-track conference, open to all, with no membership or affiliation requirements. In addition to ICAD's core interests, we would like to take the opportunity of the conference being held at IEM to highlight this yearʼs theme ICAD in Space: Sonification, Sonic Interaction Design, and Spatial Audio. ::::::::::::::::: KEY DATES ::::::::::::::::: 15 February 2015 Submission of Papers, Posters, Music, and Installations 15 March 2015 Submission of Workshops 15 April 2015 Submission of Extended Abstracts 15 April 2015 Notification of acceptance for Workshops 01 May 2015 Notification of acceptance for Papers, Posters, Music, and Installations 15 May 2015 Notification of acceptance for Extended Abstracts 01 June 2015 Camera-Ready deadline ::::::::::::::::: AREAS OF INTEREST ::::::::::::::::: Relevant areas for ICAD include but are not limited to: Auditory Display: - Aesthetics, Culture, & Philosophy - Design, Theory & Methods - Technology: Tools & Applications - Perceptual and Cognitive Aspects - Usability & Evaluation - Accessibility Special Focus of ICAD15: - Sonification: - Exploration of Data through Sound - Sonification as Art - Sonic Interaction Design - Interaction design - Input technologies - Auditory Information Design - Spatial Audio - Binaural virtual acoustics - Loudspeaker-based sound field synthesis Accepted papers will be included in the published proceedings and made publicly available in the Georgia Tech SMARTech system (http:// smartech.gatech.edu/). The types of submissions solicited for ICAD15 include: ::::::::::::::::: PAPERS AND POSTERS::::::::::::::::: Paper and poster submissions will be 4-8 pages in length, including all figures and references. Typical paper contributions are between 6 - 8 pages, and typical poster contributions are 4 - 5 pages long. Full papers should describe work that offers a substantial contribution to the field of auditory display. Authors of accepted papers will be invited to give an oral presentation of their work, and at least one author must present the work at the conference for the paper to appear in the proceedings. Poster submissions should describe both finished work and work in late stages of progress. Work that is complete enough that meaningful conclusions can be drawn at the time of submission are encouraged. Authors of accepted submissions will be invited to participate in a poster and/or demonstration session, and at least one author must present the work at the conference for the paper to appear in the published proceedings. When weighing the decision to submit to poster and demonstration sessions, we encourage authors to consider their work in relation to the potential positive benefits (both to authors and their audiences) afforded by the personal interactions that occur in this type of session. Authors of selected full papers will be invited to submit an extended version (up to 12 pages) of their papers for publication in a Special Issue of the Journal on Multimodal User Interfaces (JMUI): Auditory Display. (http:// www.springer.com/computer/hci/journal/12193) ::::::::::::::::: EXTENDED ABSTRACTS ::::::::::::::::: Extended abstracts include, but are not limited to late-breaking results, works in early stages of progress, novel methodologies, unique or controversial theoretical positions, and discussions of unsuccessful research or null findings. Submissions for extended abstracts require a proceedings paper of up to 2 pages in length. Authors of accepted abstracts will be invited to give a short presentation of their work, and at least one author must present the work at the conference for the abstract to appear in the published proceedings. The deadline of the extended abstracts is later to allow very recent contributions in the field. Papers Co-Chairs Visda Goudarzi and Areti Andreopoulou papers.icad15(a)iem.at ::::::::::::::::: MUSIC AND INSTALLATIONS::::::::::::::::: We invite submissions of music and sound installations. Sonification should be a constitutive element of the proposed works. Priority will be given to works employing space and interaction as additional dimensions to an artistic data exploration. We therefore especially encourage the submission of multichannel electroacoustic or acousmatic pieces and interactive sound installations. The works will be reviewed by an international panel of sound and sonification experts. Preference will be given to submissions that are technically feasible and have a clear documentation of the setup. At least one of the authors who wish to have their works presented at ICAD15 must register and attend to the conference. As we would like to extend the presentation of these works beyond the time limits of the conference, authors of accepted works are encouraged to present their work also online using the Research Catalogue (http://www.researchcatalogue.net), an international database for artistic research. The conference page will provide a portal to these presentations. Music Co-Chairs Johannes Zmölnig and Gerhard Eckel music.icad15(a)iem.at ::::::::::::::::: WORKSHOPS :::::::::::::::: ICAD workshops and tutorials provide in-depth opportunities for conference attendees to discuss and explore important topics in the field of auditory display with like-minded researchers and practitioners. Please submit concepts for “hands-on” workshops or discussion platforms, possibly allowing participants to contribute, but no paper sessions on their own. Focus areas can range from applications and programming methodologies to interdisciplinary research skills, emerging concepts, and challenge problems. Space, facilities, technical support, and the number of sessions that can be accepted are limited, so early submission of proposals is encouraged. Workshop and tutorial organizers are expected to collaborate with the conference committee, issue calls for participation, gather and review contributed materials (if appropriate), and decide upon the final program for their session. Workshop Co-Chairs Franz Zotter and Derek Brock workshop.icad15(a)iem.at ::::::::::::::::: SONIFICATION CONTEST :::::::::::::::: The call for the Sonification Contest will be released in early 2015. ::::::::::::::::: STUDENT THINK TANK :::::::::::::::: The call for the Student Think Tank will be released in early 2015. We will provide child care during the conference and workshops. If you travel with a kid/ kids please drop us an email ahead of time. For more information on submission in different categories please refer to the conference website: http://icad15.iem.at Conference Co-Chairs Katharina Vogt and Ypatios Grigoriadis chair.icad15(a)iem.at

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Re: [chuck-users] Inheritance and Arrays
by Casper Schipper 03 Jan '15

03 Jan '15

You could try assign subclass instances to arrays of it's parent class, as shown in the snippet bellow. It is not a very elegant syntax, but at least it makes your plus(A arg[]) function work like you would expect. best, Casper class A { 42 => int a; fun void print() { <<<a>>>; } } class B extends A { 101 => int b; fun void print() { <<<b>>>; } } fun void plus(A arg[]) { for (0 => int i; i < arg.size() ; i++) { arg[i].a ++; arg[i].print(); } } // first declare the 'container'. A @ foo[2]; // use new operator to create B instances. (new B) @=> foo[0]; (new B) @=> foo[1]; 1 => foo[0].a; 2 => foo[1].a; plus(foo); // notice, foo[0] & foo[1] still behave like a B instance. <<<"foo[0].a", foo[0].a>>>; <<<"foo[1].a", foo[1].a>>>; > > 1. Inheritance and Arrays (Julien Saint-Martin) > > From: Julien Saint-Martin <julien.saintmartin(a)googlemail.com> > To: chuck-users(a)lists.cs.princeton.edu > Date: 2 januari 2015 16:15:54 CET > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Subject: [chuck-users] Inheritance and Arrays > > > Hi! > > I would like to pass arrays of objects to a function taking an array of parent class as argument. > I try different things but unfortunately I have compilation errors each time. > > The following example works with no array: > > class A { > int a; > } > > class B extends A { > int b; > } > > fun void plus(A arg) { > arg.a ++; > } > > B foo; > > 1 => foo.a; > plus (foo); > <<<"foo.a", foo.a>>>; > > > > > But When I try the same with arrays it doesn't compile: > [l13.ck]:line(22): argument type(s) do not match: > [l13.ck]:line(22): ... for function 'plus(...)' ... > [l13.ck]:line(22): ...(please check the argument types) > > class A { > int a; > } > > class B extends A { > int b; > } > > fun void plus(A arg[]) { > for (0 => int i; i < arg.size() ; i++) { > arg[i].a ++; > } > > } > > B foo[2]; > > 1 => foo[0].a; > 2 => foo[1].a; > plus (foo); > <<<"foo[0].a", foo[0].a>>>; > <<<"foo[1].a", foo[1].a>>>; > > > Any idea ? > > Thanks in advance and Happy new year!! > > Julien > > > > > _______________________________________________ > chuck-users mailing list > chuck-users(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

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spork~ and multiple cpus
by vilbjørg broch 02 Jan '15

02 Jan '15

hi I have problems getting shreds to spread load over multiple cpus neither from miniAudicle nor commandline chuck Running linux Debian 3.2.0-4-amd64, chuck 1.3.4.0 jack, miniAudicle 1.3.2 jack I just tested the same .ck files on a mac and it looks like that the sporked shreds automatically spreads over at least 2 of 4 (4 of 8) cores. Is there any more information to find about how to handle or understand these issues, or does anyone have any tricks to share? Much greetings Vilbjørg

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Re: [chuck-users] timestamp (Gonzalo)
by Perry R Cook 06 Dec '14

06 Dec '14

One way to do it would be to pass it in as an argument or other when you run ChucK. This example uses stdin to read the output of a <date> command in the shell: // TestDate.ck Perry R. Cook, Dec. 2014 ConsoleInput stdin; // gonna read from here stdin.prompt("") => now; // wait until something comes in string datetime; // date and time string datetimenow; // plus time since chuck invoked tacked on while (stdin.more()) { stdin.getLine() => datetime; } // read input datetime.setCharAt(9,'-'); // replace time string colons datetime.setCharAt(12,'-'); // with dashes instead datetime+"-"+Std.ftoa(now/second,4) => datetimenow; // tack on time since chuck invoked <<< datetimenow >>>; // If you want to continue making updated unique // strings, just keep redoing the datetimenow line 1.5*second => now; datetime+"-"+Std.ftoa(now/second,4) => datetimenow; // tack on time since chuck invoked <<< datetimenow >>>; To use this: date +"%m%d%y-%T" | chuck TestDate.ck Outputs (date-H-M-S-now): "120614-15-00-09-0.0000" : (string) "120614-15-00-09-1.5000" : (string)

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timestamp
by Gonzalo 06 Dec '14

06 Dec '14

Is there a way to get the system's timestamp? Something like PHP's time(). I'm asking because I'm trying to append a unique string to a filename (something like errors_143234334.log), where 143234334 would be a timestamp or a date. An alternative approach is to generate a random number, but then I loose sequentiality. Thanks! Gonzalo

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Call for Submissions - 21th International Conference on Auditory Display (ICAD 2015)
by Visda Goudarzi 04 Dec '14

04 Dec '14

[Apologies for cross-posting, please distribute] Call for Papers, Posters, Extended Abstracts, Music, Installations, and Workshops - ICAD 2015 “ICAD in Space: Interactive Spatial Sonification” The 21st International Conference on Auditory Display July 6 - 7 Workshops and Student Think Tank July 8 - 10 Conference University of Music and Performing Arts and Technical University of Graz, Austria. The conference is organised by the Institute of Electronic Music and Acoustics (IEM). IEM is one of the leading institutions in the field of audio engineering and computer music. As part of the University of Music and Performing Arts Graz, IEM is a multidisciplinary institution, whose general mission is to bridge the gap between science and the arts. As a unique characteristic, IEM focuses on sonification as part of its research in computer music. IEM facilities include laboratories and performance spaces such as CUBE, which are equipped with spatial audio and motion tracking systems. Since 2014, IEM hosts the Sonic Interaction Design (SID) lab, in which interactive sound systems are designed and evaluated. ICAD is a highly interdisciplinary conference with relevance to researchers, practitioners, artists, and graduate students working with sound to convey and explore information. The conference is unique in its specific focus on auditory displays and the range of interdisciplinary issues related to their use. Like its predecessors, ICAD15 will be a single-track conference, open to all, with no membership or affiliation requirements. In addition to ICAD's core interests, we would like to take the opportunity of the conference being held at IEM to highlight this yearʼs theme ICAD in Space: Sonification, Sonic Interaction Design, and Spatial Audio. http://icad15.iem.at ::::::::::::::::: KEY DATES ::::::::::::::::: 15 February 2015 Submission of Papers, Posters, Music, and Installations 15 March 2015 Submission of Workshops 15 April 2015 Submission of Extended Abstracts 15 April 2015 Notification of acceptance for Workshops 01 May 2015 Notification of acceptance for Papers, Posters, Music, and Installations 15 May 2015 Notification of acceptance for Extended Abstracts 01 June 2015 Camera-Ready deadline ::::::::::::::::: AREAS OF INTEREST ::::::::::::::::: Relevant areas for ICAD include but are not limited to: Auditory Display: - Aesthetics, Culture, & Philosophy - Design, Theory & Methods - Technology: Tools & Applications - Perceptual and Cognitive Aspects - Usability & Evaluation - Accessibility Special Focus of ICAD15: - Sonification: - Exploration of Data through Sound - Sonification as Art - Sonic Interaction Design - Interaction design - Input technologies - Auditory Information Design - Spatial Audio - Binaural virtual acoustics - Loudspeaker-based sound field synthesis Accepted papers will be included in the published proceedings and made publicly available in the Georgia Tech SMARTech system (http:// smartech.gatech.edu/). The types of submissions solicited for ICAD15 include: ::::::::::::::::: PAPERS AND POSTERS::::::::::::::::: Paper and poster submissions will be 4-8 pages in length, including all figures and references. Typical paper contributions are between 6 - 8 pages, and typical poster contributions are 4 - 5 pages long. Full papers should describe work that offers a substantial contribution to the field of auditory display. Authors of accepted papers will be invited to give an oral presentation of their work, and at least one author must present the work at the conference for the paper to appear in the proceedings. Poster submissions should describe both finished work and work in late stages of progress. Work that is complete enough that meaningful conclusions can be drawn at the time of submission are encouraged. Authors of accepted submissions will be invited to participate in a poster and/or demonstration session, and at least one author must present the work at the conference for the paper to appear in the published proceedings. When weighing the decision to submit to poster and demonstration sessions, we encourage authors to consider their work in relation to the potential positive benefits (both to authors and their audiences) afforded by the personal interactions that occur in this type of session. Authors of selected full papers will be invited to submit an extended version (up to 12 pages) of their papers for publication in a Special Issue of the Journal on Multimodal User Interfaces (JMUI): Auditory Display. (http:// www.springer.com/computer/hci/journal/12193) ::::::::::::::::: EXTENDED ABSTRACTS ::::::::::::::::: Extended abstracts include, but are not limited to late-breaking results, works in early stages of progress, novel methodologies, unique or controversial theoretical positions, and discussions of unsuccessful research or null findings. Submissions for extended abstracts require a proceedings paper of up to 2 pages in length. Authors of accepted abstracts will be invited to give a short presentation of their work, and at least one author must present the work at the conference for the abstract to appear in the published proceedings. The deadline of the extended abstracts is later to allow very recent contributions in the field. Papers Co-Chairs Visda Goudarzi and Areti Andreopoulou papers.icad15(a)iem.at ::::::::::::::::: MUSIC AND INSTALLATIONS::::::::::::::::: We invite submissions of music and sound installations. Sonification should be a constitutive element of the proposed works. Priority will be given to works employing space and interaction as additional dimensions to an artistic data exploration. We therefore especially encourage the submission of multichannel electroacoustic or acousmatic pieces and interactive sound installations. The works will be reviewed by an international panel of sound and sonification experts. Preference will be given to submissions that are technically feasible and have a clear documentation of the setup. At least one of the authors who wish to have their works presented at ICAD15 must register and attend to the conference. As we would like to extend the presentation of these works beyond the time limits of the conference, authors of accepted works are encouraged to present their work also online using the Research Catalogue (http://www.researchcatalogue.net), an international database for artistic research. The conference page will provide a portal to these presentations. Music Co-Chairs David Pirrò and Gerhard Eckel music.icad15(a)iem.at ::::::::::::::::: WORKSHOPS :::::::::::::::: ICAD workshops and tutorials provide in-depth opportunities for conference attendees to discuss and explore important topics in the field of auditory display with like-minded researchers and practitioners. Please submit concepts for “hands-on” workshops or discussion platforms, possibly allowing participants to contribute, but no paper sessions on their own. Focus areas can range from applications and programming methodologies to interdisciplinary research skills, emerging concepts, and challenge problems. Space, facilities, technical support, and the number of sessions that can be accepted are limited, so early submission of proposals is encouraged. Workshop and tutorial organizers are expected to collaborate with the conference committee, issue calls for participation, gather and review contributed materials (if appropriate), and decide upon the final program for their session. Workshop Co-Chairs Franz Zotter and Derek Brock workshop.icad15(a)iem.at ::::::::::::::::: SONIFICATION CONTEST :::::::::::::::: The call for the Sonification Contest will be released in early 2015. ::::::::::::::::: STUDENT THINK TANK :::::::::::::::: The call for the Student Think Tank will be released in early 2015. For more information on submission in different categories please refer to the conference website: http://icad15.iem.at Conference Co-Chairs Katharina Vogt and Ypatios Grigoriadis chair.icad15(a)iem.at

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Mesh2D chugin: problem with setting .xpos/.ypos
by Jean Menezes da Rocha 30 Nov '14

30 Nov '14

Hello, I am trying to get Mesh2D into an useful thing. However, even though I assign arbitrary float values to .xpos or .ypos, they always return zero regardless of my explicit declaration. When I run, for instance, the example mesh-help.ck from the repo and ask ChucK to print all values, I get always zero for .xpos and .ypos: Mesh2D mesh1 => dac.left; Mesh2D mesh2 => dac.right; 0.5 => mesh1.gain => mesh2.gain; while (true) { Math.random2(2,12) => mesh1.x; Math.random2(2,12) => mesh1.y; Math.randomf() => mesh1.xpos; Math.randomf() => mesh1.ypos; 1 => mesh1.noteOn; 250::ms => now; Math.random2(2,12) => mesh2.x; Math.random2(2,12) => mesh2.y; Math.randomf() => mesh2.xpos; Math.randomf() => mesh2.ypos; 1 => mesh2.noteOn; 250::ms => now; <<<mesh1.x(), mesh1.y(), mesh1.xpos(), mesh1.ypos()>>>; <<<mesh2.x(), mesh2.y(), mesh2.xpos(), mesh2.ypos()>>>; } # chuck mesh-help.ck 11 9 0.000000 0.000000 4 5 0.000000 0.000000 4 9 0.000000 0.000000 10 11 0.000000 0.000000 6 5 0.000000 0.000000 2 3 0.000000 0.000000 5 6 0.000000 0.000000 2 6 0.000000 0.000000 3 7 0.000000 0.000000 10 2 0.000000 0.000000 ...and so on. What do you think about it? Best regards! -- Jean Menezes da Rocha Compositor Professor -- Faculdades Est Mestre e Doutorando em Composição pela Universidade Federal da Bahia

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