Yamaha QY100 as the main sequencer in your hardware synthesizer setup - YouTube
Yamaha Qy100 Music Sequencer Communication Data Cable Prolific Usb Programming Cable Pl2303 Usb Rs232 Serial To Mini Din 8-pin - Pc Hardware Cables & Adapters - AliExpress
クリスマスファッション YAMAHA MUSIC QY100 SEQUENCER レコーディング/PA機器 - netformic.com
Yamaha QY 100 - the mini synthesizer workstation you were looking for? - YouTube