Kurzweil SP4-7 76 Note Digital Stage Piano, Semi Weighted Keys, 128 Programs, 64 Split Polyphony, Split Layer, Setup Mode, 24 Bit DSP Technology, Black – Product Description: Kurzweil’s SP4-7 is the modern successor to the best selling SP76, which famously combined world-class Kurzweil sound quality with previously unheard of affordability. The updated SP4-7 makes available