I figured out how to make the file available to you. You can download it using this link. Thank you VERY much for your help with this.

https://dl.dropboxusercontent.com/u/1636414/GeeseInBog%20Test.MGU

This is an example. For some odd reason, the melody often doesn't play with the right MIDI patch. I have selected Vibraphone but just now when I was playing this file in BIAB it was playing with a Piano patch. Sometimes when I double click a measure to play it then plays with Vibraphone. It seems to sort of randomly switch between these patches. By the way, I am using a copy of BIAB that I purchased on a hard drive from PG Music and then updated to the latest build, version 2012.5 Build 65.