The WK6600 from Casio is a 76-key, touch-sensitive workstation keyboard that provides 700 tones organized by category, and features a seventeen-track sequencer, a thirty-two-channel mixer, DSP effects, and USB MIDI connectivity. Each of the voices can be edited with control over filters, envelopes and more and audio can be recorded to SDHC cards with everything played back via built-in amplifier and speakers. A total of 210 preset rhythms are available with full accompaniment built in. A rhythm editor allows for combining instrument parts from multiple rhythms, turn individual instrument parts on or off, and adjust volume, pan, reverb, and other parameters to create original rhythms. The sequencer allows for editing performances and turning out professional sounding tracks. The resulting song file can be saved to an SDHC card or saved as an audio recording.