Roland GR-55 Instruments Music Demo ( Part 4. ) 4:5 

Synthesizer and Piano revolution for anyone who plays guitar, and not keyboard.
Take a look and listen to more of my favorite instrument applications:
30 String Guitar RHYTHM 05-1
Phaser E.Pf RHYTHM 14-2
AG & Epf RHYTHM 13-3
Drive Wurly RHYTHM 15-3
POWER Ac.GUITAR RHYTHM 35-3
Pizzicato Gt RHYTHM 25-2
Epf + 335 Unison LEAD 07-3
Weather Forecast LEAD 35-3
FullBeardBoogie LEAD 34-1