Product Detail Sound Quality - large selection of realistic Voices - vast selection of 294 realistic instrument voices LCD displays lyrics, chords, notation - Have you ever played a song and wondered what it would look like as sheet music? Ease of Operation - Mixer Function, Music Database, One Touch Settings, Registration buttons Sixteen tracks are provided to accommodate sophisticated melodies, chord accompaniment and rhythm parts. Three effects blocks - tailor your sound - 35 Reverb, 44 Chorus and 237 DSP effects plus 26 Harmony and 5 preset types of Master EQ. The PSR-S550B can display the score to a song whether it comes from the Internet . The "Yamaha PSRS550B 61 Key Arranger Workstation Keyboard" is best product for you. We recommended Yamaha PSRS550B 61 Key Arranger Workstation Keyboard