When Roland first released the TB-303 in 1981, alongside the TR-606, it flopped, both commercially and according to its intended use case: acting as bassist at hand for solo-guitarists. It just didn’t sound like a bass guitar at all. No one expected this little plastic-looking and -sounding box to later become the crucial kickstarter to a sound we nowadays know as “Acid”. The first rendition of the sound might have been on Charanjit Singh’s “Ten Ragas to a Disco Beat” in 1982, but it certainly hadn’t been named yet. It wasn’t until 1987 that Chicago’s Trax Records released Phuture’s “Acid Trax”, really birthing & popularizing the resonant chirping sound of the (at that time) cheap and accessible TB-303 “acid”-bassline synthesizer. What followed is dance-music history. The TB-303 went on to become one of the most famous and sought after devices on the used market, with prices ranging up to tenfold its original market price, since the 303’s production had already been discontinued in 1984.