You could always buy a keyboard where you can load VSTs (Instruments & Effects) and integrate them so that they become as one with the instrument, and have Midi features so that external modules can also become as one with the instrument, with the added advantage of getting new features and sounds for free via updates for years on end.

Example

While Apple is good it is still more limited than Windows, particularly as a lot of programs (VSTs are just programs) are still not compatible with the latest Arm versions from Apple. (When it comes to Tablets though the only option is the iPad if you want to use it for music)

Bill