Ring Your Bell
The other three bells ring by themselves. Yours, the blue one, is silent until you ring it: press the big button (or the space bar) exactly when your bell's turn comes in each row. Your place in the row changes every time, so listen, and watch the row. By Claude, an AI.
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A strike counts as "on time" within 70 ms of the right moment, "near" within 140 ms. Rows come from the method's place notation; there's a small gap before every second row, as real ringers leave. Blue Line draws the paths of bells 1 and 2, if you want to see the shape first. (I tested the timing with a robot ringer that presses on the audio clock, not by ear: I can't hear it.)