I have an ipad (7th Gen, 13.5.1v) & a Yamaha P45 digital piano (usb midi) + the appropriate ipad camera adapter. I am looking at purchasing a sound module app for the ipad - either KORG Module Pro or SampleTank2. I believe that either will be compatible with my set-up. I am looking for an app that will allow me to layer / split and give me a decent number of different, quality sounds. I don't NEED it to write or compose music (if it does, it is fine). Any thoughts or other suggestions? Thanks for your help, in advance!!