Multitrack midi - midifile and detonate


    Jun 21 2007 | 1:47 pm
    Tried midifile for multitrack files. Note that it works fine if you use it
    the way they apparently intended - recording files into the object and
    writing them. Reading existing midifiles is problematic. Old files that
    use key off messages don't work because midifile apparently uses keyon with
    velocity 0 for key off. Probably something easy to change.
    Had another look at detonate and it seems to be working better than I
    remember. Perhaps it has been fixed. The problems I encountered were that
    write and export actually behaved differently - now the doc says they are
    identical. Both finale and sibelius no read the exported midi files
    correctly. One thing I would like to see is absolute record location like
    midifile has. That is you tell detonate where you want to record instead of
    how far beyond the most recent note. I though I had found a work around by
    using negative delta times - i.e. -1000 60 64 2000 2 4 to record a half note
    C3 one second earlier than the previous note on channel 2 of track 4.
    Didn't work because detonate ignores negative delta times.
    So I am still looking for that perfect multitrack midi file object.
    Cheers
    Gary Lee Nelson
    Oberlin College
    www.timara.oberlin.edu/GaryLeeNelson