Tuning by ear takes years; tuning with a clip-on tuner still leaves you doing the winding. The Roadie 3 does the winding. You clip it over a machine head, pluck the string, and a motor turns the peg in the right direction until the pitch lands — then it moves on to the next string. It also handles 150-plus alternate and drop tunings, which is where hand-tuning gets genuinely tedious, and it doubles as a powered string winder for restringing day. It is a small robot that does one boring job extremely well, which is exactly the sort of gadget people do not know exists until they see it move.
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