i did some experiments and it appears that MidiFileIn processes event times according to the tempo track. It would be complicated to convert back to midi ticks. I.E if you change the tempo in the midi file you get different event times. On Tue, 25 Apr 2023 14:01:11 -0700 Spencer Salazar wrote:

Sounds cool -- storing absolute offsets of the MIDI events from some arbitrary start time would work better to implement seeking. Deltas can then be reconstructed from [current_event_time - previous_event_time]. You can iterate through the events once at the very beginning to convert deltas to absolute times.

Spencer

On Tue, Apr 25, 2023 at 1:43 PM d wrote:

...

Hi

I'm revisiting my chuck sequencer after trying java for a bit.

I can play a file, now.

But I want to seek to a particular measure, start and stop at random times, break out of a loop over some bars, and other kinds of conducting.

SO Ive loaded the tracks in an array but the times are converted to deltas Making seeking difficult.

I think I need to implement a midi clock and somehow "send" the time to the track sporks or something.

Perhaps there is something in the upcomping realease that will help?

I do my arranging in lilypond and long term id like to explore "players" that modify the events slightly, adding velocity,swing, vibrato, etc and be able to conduct that in real time. Perhaps even from cues in the score.

any suggestions welcome thanks, d _______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users