If you want to do anything music related other then sheetmusic reading..
An apple ipad is your ownly option..

All programs i use never where released for android, and therenis not really much of that professional level
Next to that android has latency problems for realtime music making..

Cubasis
Beatmaker 3
korg gadget
Garageband
Reason
Impc
Audiobus3
Etc, etc.. only available at ipad..


Also many Apps for edditing Roland and Yamaha onstruments are ipad only..



Ipad also has a standard (AU units) for plugin instruments..
And as said realtime processing..
The ipad is a pro tool.. rivalising the latest windows pc/tablets

Apple has learned from the past’where it lost to microsoft 3 decades ago because of software availabillity
Thats where they rule now... professional music apps are mostly ipad only
For several reasons.. stabillity... development set.. generic hardware... anti piracy on ios.



Android is mostly found in low end tablets which are nothing more then meant to play an mp3, watch netflix or browse the web
Or, read sheet music..


There is a reason ipad currently makes 80% of all tablet sales..
Android is mostly concentrating on mobile phones..