Can’t Stop Rock ’n’ Roll

136 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 98% — put it in D minor, a key signature of 1 flat. The tempo printed above is the median of the 136 readings; 99% of them land within 2% of it, and they barely differ at all.

At 85.2 BPM one beat lasts 704.2 milliseconds, so a sixteenth note is 176.1 ms and a dotted eighth 528.2 ms — the delay times for this recording. Counted half as fast it is 42.6 BPM, counted twice as fast 170.4. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 439 Hz, which is 4 cents below concert A at 440 Hz — close enough to standard that a tuner would not argue. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 2.08 dB: that is how far the level wanders from its own average, so a small number means a loud, flat master and a large one means a recording that still breathes. Its average loudness is 0.964 on Essentia's 0-to-1 scale, which is not decibels and is not comparable to a streaming service's number.

10 other recordings here are in D minor; the ones listed below are the closest in tempo.