US. Patent 397 Music Databasa Dec. 7, 2010 DM Sheet 3 of8 36 M1 e 39 US 7,847,178 B2 . Synthesrzer M24 , 41 e , Processor MA3 32 _O Sound Samples 31 38 396 Processor 3 8 9 435A M1’ Synthesizer M2 DAC MA2 S2 ' DAC 42B FIG. 4 5A2 44