The YAMAHA QY10, released in 1990, is a portable MIDI sequencer with built-in FM sound and 8-track capability

 The YAMAHA QY10, released in 1990, is a portable MIDI sequencer with built-in FM sound and 8-track capability. Known as the world's first handheld music studio, it enabled music creation anywhere. Though simple, it remains popular among chiptune enthusiasts and retro gear fans.


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