Synths are great. You push a key, turn a few knobs and suddenly you're making "music." So when keyboard maker Korg realized it had a hit with its low-cost, entry-level Monotron series, it was only ...

Korg arguably kickstarted something of a synth revolution when it launched the Volca line. And the Volca FM has been a consistent favorite in the series. (It was also the first "real" synth I ever got ...