Messed up MIDI file on some inputs

[voronaam]

I just used your music compiler in a fun project to convert Java byte code into music.

While doing so I discovered a small bug. Try playing this file (Warning: it sounds like someone smashed the keyboard)

voice Right {}

play Right
{
:|a' b' c' d' a' b' c' d' a' |f' g' C D f' g' C D f' g' C  | g a' b' c' g | b c d e |
}

Deleting any measure from this sequence sounds fine. Adding a tone to the last measure fixes it as well.