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Piano Điện Casio AP40 - Đàn Piano Điện
CASIO AP-470 _ L.v. Beethoven Piano Sonata Op.2 No.3 4th movment - YouTube
Amazon.com: ZHRUNS Digital Piano,88 Heavy Hammer Piano Keys with Touch Response Electric Keyboard Piano/Music Stand+Power Adapter+3 Metal Pedals+Instruction Book,Headphone Jack/MIDI Input/Outputp (White) : Musical Instruments
CASIO AP40 Service Manual download, schematics, eeprom, repair info for electronics experts