This MIDI keyboard, for example, is small enough that it will fit in the space of a standard business card which would have been an impossibility with the technology available when MIDI first ...

That’s it on the left, next to a standard MIDI cable plug. The whole thing is so small it fits inside a MIDI plug and can run off the power supplied by the MIDI output, driving a small pizeo buzzer.

a more compact option MIDI keyboards don’t have to cost a lot, and this Akai model is great value for money, featuring both keys and drum pads as well as some bundled software. Small enough to ...