any specific apps you can suggest?I don't see anything on Roland's site, or in the E-X20's manual, which suggests that you can load and use any external style files, so you would presumably need to use an external app to play MIDI files on your computer or tablet and transmit the MIDI events to your keyboard. You would need to use the app to select which file you want to play and to control the playback as far things like muting or unmuting channels, switching between the various portions of the style, etc.
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