What a fun little sequencer! I'm not good at programming it, but there are some really nice patterns that you can loop and then hit the drum buttons to pretend like you are doing something.  

This thing was made in later 1980s, i think?  I tested it out with a 9volt power supply and it works.  Not sure if the midi stuff works, I don't have any cables.  

What you get:
* Yamaha QY10

What you don't get
* Power supply or any cables.


"This YAMAHA QY10 MIDI sequencer is a versatile and programmable module controller that delivers high-quality digital music without compromising on sound quality. With 16 channels and 8 pads, it's ideal for creating innovative beats and rhythms. The black modular device is designed for musicians and producers who demand a professional quality sound.The QY10 is a digital sequencer with a rhythm machine and a variety of effects, including a voice module that elevates your music creativity. This product is made in Japan and is suitable for use in professional audio equipment settings."