The PSR-E303 features 482 voices (including Yamaha's XGlite voice set), 106 styles and 102 preset songs. One breakthrough is a five-track sequencer that allows the user to record his or her own original music. Other refinements include "Full" and "Split" keyboard functions, DSP effects, the Sound Effects Kit with dedicated panel button and Flash ROM--perfect for connecting to a computer and transferring MIDI content from the Internet