Thanks for your response. I will research those sites you mentioned. I have long looked for "high quality MIDIs" as you described, but these are hard to come by. I was hoping to use BIAB to dissect an existing MP3 and create the separate tracks like you mentioned so that I can manipulate these and add the styles. The big issue is that ACW is very time consuming to find the chords since you have to create the timing reference for each measure.

My 30 minute timeframe is based on actual time spent using Ableton Live 10 where I downloaded a KAR file and produced a backing track in similar fashion to what you described. However, I find some real value in BIAB if I would be able to do the same, but change the styles in real time.

What would be really good is for this forum or similar website to actually create the BIAB song files for all popular music the same way that the MIDI libraries exist everywhere. If you take a look at iREALPro forum (https://irealb.com/forums/), they have actually done this for the iRealPro app. It works great, and is very simple to use. The problem is that it uses the MIDI styles and not the real styles like BIAB.

So, maybe this forum can fill that gap! Let all forum users upload their BIAB songs to this forum and share with everyone. These can be input into the Song Picker in BIAB. Maybe this exists and I don't know about it.

Any thoughts?