cyclone3d wrote on Yesterday, 22:48:

And you can switch the drum sets while in use.

Unfortunately, that is not the case. While you CAN in fact change the drum set while playing a MIDI file on the fly (as can be done with any external module virtually) it resets the what yamaha calls the "accompaniment" section, which is every midi channel except 10 to default (piano).
Still I like it because it sounds different compared to all my other devices.

Bought this IBM Model 8513 monitor. After good cleaning, it looks almost like brand new. Only visible flaw is slightly yellowed power switch. I expected the caps in old junk like this to be dead. I de-soldered few of them to test, and all of them tested fine, so I let them be.

Now I have all the components of my first computer setup in ~1990. This monitor, IBM PS/2 Model 30 8086, Model M keyboard and that IBM's first PS/2 mouse. I already thought I would never find the monitor in decent condition.