ReferenceE-72SpecificationsModels CTK-4000 / CTK-5000Keyboard 61 standard-size keysTouch Response 2 types, OffMaximum Polyphony 48 notes (24 for certain tones)TonesBuilt-in Tones CTK-4000: 570CTK-5000: 670Sampling Tones Up to 8 (Melody Sampling: 5, Drum Sampling: 3)*Up to 10 secondsFunctions Layer, SplitReverb 1 to 10, OffChorus 1 to 5, OffMetronomeBeats per Measure 0, 2 to 6Tempo Range 30 to 255Song BankBuilt-in Songs 152User Songs Up to 10*Step Up LessonLessons 4 (Listen, Watch, Remember, Auto)Lesson Part L, R, LRFunctions Repeat, Voice Fingering Guide, Note Guide, Performance EvaluationMusic Challenge 20 notesAuto AccompanimentBuilt-in Rhythms CTK-4000: 180CTK-5000: 200User Rhythms Up to 10 (Accompaniment Edit)*Registration 32 (4 setups × 8 banks)Recorder Real-time recording, playbackKeyboard Play 5 songs, 6 tracksPlaying Along with aBuilt-in Songs 1 song (L, R, LR)Memory Capacity Approximately 12,000 notes (total for 6 songs)Other FunctionsTranspose ±1 octaves (–12 to +12 semitones)Octave Shift Upper/Lower ±2 octavesTuning A4 = approx. 440 Hz ±100 centsScale Tuning Scale Fine Tune (CTK-5000 only), Quarter Tone (CTK-5000 only), Preset ScalesMusic Preset 305One Touch Preset CTK-4000: 180CTK-5000: 200Auto Harmonize 12 typesArpeggiator 90 typesMIDI 16 multi-timbre received, GM Level 1 standardMusical Information Function Tone, Rhythm, Song Bank, numbers and names; staff notation, fingering, pedal operation,tempo, measure and beat number, chord name, etc.Pitch Bend Wheel (CTK-5000 only)Pitch Bend Range 0 to 12 semitonesSD Memory Cards (CTK-5000 only)Supported SD Memory Cards 2GB or lessFunctions SMF playback, file storage, file recall, file delete, card formatB