I watched a documentary that covered this - don't recall which one. At the time of release, it was Roland's best stab ant making drum sounds from analog oscillators, filters and noise. When better technology came out, the TR-808 could be had for dirt cheap. That's when a lot of the hip hop artists and electronic music folks picked them up.
Acoustic/Electric stringed instruments ranging from 4 to 230 strings, hammered, picked, fingered, slapped, and plucked. Analog and Digital Electronic instruments, reeds, and throat/mouth.