Yamaha PSR-S650 61-key Arranger Workstation
61-key Portable Arranger Keyboard with 864 Sounds, 181 Accompaniment Styles, Alternative Tunings, 16MB FlashROM Expansion, and MegaVoice Articulation Technology
61-key Portable Arranger Keyboard with 864 Sounds, 181 Accompaniment Styles, Alternative Tunings, 16MB FlashROM Expansion, and MegaVoice Articulation Technology