SpecificationsE-61SpecificationsModel: LK-73Keyboard: 73 standard-size keys, 6 octaves (with touch response on/off)Key Light System: Can be turned on and off (up to 10 keys can be lit at the same time)Tones: 137 (128 General MIDI tones + 9 drum tones); with layer and splitRhythm Instrument Tones: 61Polyphony: 24 notes maximum (12 for certain tones)Auto AccompanimentRhythm Patterns:Tempo:Chords:Rhythm Controllers:Accomp Volume:100Variable (216 steps, = 40 to 255)3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD)START/STOP, INTRO, NORMAL/FILL-IN, VAR/FILL-IN, SYNCHRO/ENDING0 to 127 (128 steps)3-step Lesson:Playback:3 lessons (Step 1, 2, 3)Repeat play of a single tuneSong BankNumber of Tunes:Controllers:100PLAY/PAUSE, STOP, FF, REW, LEFT/TRACK 1, RIGHT/TRACK 2Musical Information Function: Tone, Auto Accompaniment, Song Bank numbers and names; staff notation, tempo,metronome, measure and beat number, step lesson display, chord name, dynamicmark, fingering, octave mark, pedal operationMetronome:Beat Specification:On/Off1 to 6Song MemorySongs:Recording Tracks:Recording Methods:Memory Capacity:22Real-time, stepApproximately 5,200 notes (total for two songs)MIDI: 16 multi-timbre receive, GM Level 1 standardOther FunctionsTranspose:Tuning:25 steps (–12 semitones to +12 semitones)101 steps (A4 = approximatery 440Hz ±50Cents)TerminalsMIDI Terminals:Sustain/Assignable Terminal:Headphone/Output Terminal:Output Impedance:Output Voltage:IN, OUTStandard jack (sustain, sostenuto, soft, rhythm start/stop)Stereo standard jack1004V (RMS) MAXPower Jack: 9V DC641A-E-063A