Additonally I noticed that if you download .mgu together with an mp4 file in a zip file from dropbox you can play the music as well in the app. This is mentioned as option by BIAB ( instead of using a server) but it functions only for Android I thought first.

From some more experiments I learned using a mp4 does NOT work for iPad, it functions at an Android system. For I pad you explicitly need to use the m4a format. This will function at both systems. So just create an accompanyïng m4a and zip it together with the mgu or alike and email it to your iPad or send It to dropbox or google drive.
You can open the zip from email or dropbox and download it for iPad. However email will NOT function with Android 5.0+ since you cannot choose the BIAB app to open!

Rob

Last edited by robvh; 10/19/16 06:32 AM.
Musicians and music publishers are still wasting too much paper...come on men we live in the digitised age...Wake up!