Most portable digital pianos have accompaniment capability built in. Not to mention that any MIDI capable keyboard you can hook to a computer and programming for studio quality accompaniment. My Kawai MP6 Stage piano has it built in but I also run a program called Mixcraft 7 which allows me to use any of the Pinaoteq sounds I have in Pianoteq and mix that with any number of combinations of about 2000 different instrumentation. So I can play a customized Steinway D sound in Mixcraft ( for instance), with say a choir and stringed instruments , or clarinet etc etc etc. It's fun, it records very well but it can also get old, to where I just want to hear and feel my real acoustic grand piano.The ES8 is a very decent piano. As are any number of other quality choices in about that price range. My next digital will have no on board sounds, it would be basically a controller only and use virtual sounds. My next will have wooden key cores also, built on a long grand piano scale fulcrum.
Do you think there would be a way to cleanly add accompaniment to my Casio PX-150? If so, can you recommend specific hardware/software? Thanks.