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Casio CTK-4000 61-Key Portable Keyboard, 570 Tones, EFX, Lessons, Polyphony, AC & Battery Operated | Reverb Denmark
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2pcs) Casio CTK-4000 Musical Keyboard and Akai Professional LPK25 - USB Laptop Performance Keyboard - Sierra Auction Management Inc
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Casio CTK-4000 Personal Keyboard, 61-Key, with MP3 Connection, 10 Second Sampling, and Digital Effects : Amazon.in: Musical Instruments
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CASIO ctk - 4000, rarely used, price negotiable, Hobbies & Toys, Music & Media, Musical Instruments on Carousell
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