I've got a sax melody in the intro bars of the song, but I'd like to use a different sound for the vocal melody. Can I change the sound at a particular bar? I looked at Bar Settings, but found nothing.
Change the midi patch of a Track at a particular measure is possible by using a MultiStyle. In your circumstance, you would search MultiStyles in the StylePicker that had the two midi patches you want to use on the same track with all the other tracks remaining the same.
You would use Part Markers to select which of the two Style and different soloist instrument to play across the measures you designate with Part Markers. For example one style plays sax and the second style plays Jazz Guitar while all other instruments and substyles remain the same.
You may not find the exact match. If you don't, use the current style to edit and save a User custom style, adding the second soloist to the same track by replacing the first and saving the new custom style to use in you MultiStyle. You create and edit styles in the StylePicker located under File Menu.
Rebuild the StylePicker so it will find your new style.
Select the measure you want, Rt click on the Part Marker and select Define c/d
The StylePicker will open, in the search type in the name you gave to your User Style, and select and load it,
Change the Part Marker back to your a/b original style to end the solo of your song.
A BIAB song can have as many as 24 MultiStyles that can be used multiple times in your song. Using MultiStyles works the same with RealStyles and SuperMidi tracks too. It works with combining these different medias.