Yamaha PSRE343 61 Key Entry Level Portable Keyboard with Survival Kit B2 Lightweight and fully loaded portable arranger keyboard that makes songwriting and improvisation a blast 61 organ-style keys provide you with enough resistance to comfortably play piano parts and fast enough response for brass and synth instrument sounds 550 high-quality voices 136 Style varieties provide intelligent backing tracks that follow the notes you play 150 arpeggio patterns allow you to quickly and easily create complex musical patterns