I download sheetmusic from sheetmusic direct website using my Ipad app and use the ipad to playback the music but the piano sounds dread full. the ipad uses IOSMIDIDevce ( GM ) for its default midi sound source.
I was wondering if there is an app I can download which has a better piano sound and use it with sheetmusicdirect to playback the score.
I know there are lots of digital pianos that can playback midi data through bluetooth but I dont have one of those.

Kawai VPC1,True keys American,Ivory Grand pianos, Pianoteq 6.0 and Ravenscroft