Hi tilia,

I listened again to your mp3 tonight with headphones and did hear the missing notes. They seem to happen whenever the same pitch is played in a row. I noticed in the notation window that there is no spacing in the note durations so I'm thinking that maybe the rendering is failing to trigger the second note if the same note ends exactly where the next note of the same pitch begins. When entering melodies into BIAB using the mouse, the duration of the previous note is shorted by some small percentage if I remember correctly.

I've modified the melody note duration for your file fj4_175.MGU which you can download here:

https://www.dropbox.com/s/tggtpbjcf0wraz1/fj4_175_reduced_note_duration.MGU

Could you download and see if that renders correctly for you? I hope that works...if it does the note durations can be pretty quickly edited in the piano roll window by right-clicking to select all the notes and then holding down the shift key and dragging the handle on one of the note ends a small amount to the left to shorten the durations of all the notes.

Good luck,
Ed