So You Want to Be a Rock ’n’ Roll Star

167 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 78% — put it in D major, a key signature of 2 sharps. The tempo printed above is the median of the 167 readings; 98% of them land within 2% of it, and the middle eight tenths of them run from 152.8 to 153.9 BPM.

At 153.4 BPM one beat lasts 391.1 milliseconds, so a sixteenth note is 97.8 ms and a dotted eighth 293.4 ms — the delay times for this recording. Counted half as fast it is 76.7 BPM, counted twice as fast 306.8. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 440.5 Hz, which is 2 cents above 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 3.72 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 0.833 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 major; the ones listed below are the closest in tempo.