Happy 303 Day!
There is a myth that when Roland released the TB-303 in 1981, they had no idea that some of the tone controls would later be used (by tweaking knobs while the sequencer was running) to make an 'Acid' sound.
A TB-303 advert from 1982 refers to these tone controls, and says: "to be varied at pleasure".
"At Pleasure".
THEY KNEW!
https://www.muzines.co.uk/ad/5855
Here's an April 1982 review of the first 303 in the UK:
https://www.muzines.co.uk/articles/roland-tb-303-bass-line/4250
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