You might have had a boombox back in the 1990s, but probably not like the Yamaha MDP-10. As [Nicole] explains, the odd little device played MIDI files from a floppy disk. Technically, it wasn’t truly a boombox because it lacked batteries, but it sure looks like one.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/05/21/this-midi-boombox-takes-floppies/