Yes but it needs the ability to play song files. Ipads and Android tablet can have up to half a TB memory so it needs to be able to hold some kind of modified .SGU files with some sort of RT/RDs that are light weight and a decent Midi synth. Imagine the ability to load 30 or 40 songs for a night gig. Bluetooth to your PA and your light weight system is ready.
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I already do that. I've done it for near a decade, including bluetooth.
I just don't do it in BIAB.
I do Build the backing track arrangement in BIAB
Add tracks from BIAB and mix master in the DAW. If I need something else I add it in the DAW.
Output 320kpbs mp3 from DAW.
Anytune Pro (IOS/Android) for Song library management, Playback, Setlist, loop sections, etc
Bluetooth to PA system
Bluetooth to footpedal (blueboard) to control playback and looping.
Slick & easy.
2 trips to load in and out.
Backup is my phone. Carry a cable or two if I have a bluetooth problem. Never have almost 10 years.
Sgu's and BIAB on stage is just not a good, efficient fit.
BIAB is the right tool in the studio with your DAW, just not on the bandstand.