A key difference here is that you’re able to anticipate and plan upcoming actions, because you’re familiar with the general structure of music and/or the specif

A key difference here is that you’re able to anticipate and plan upcoming actions, because you’re familiar with the general structure of music and/or the specific song. Even the experts couldn’t respond to an unpredictable stimulus in 30ms; instead, they’re choosing between (say) a 330 ms response and a 340 ms one. This is, of course, still crazy impressive.