Be Quick or Be Dead

172 independent analyses of this recording were submitted to AcousticBrainz. A bare majority of them — 67% — put it in C minor, a key signature of 3 flats. The tempo printed above is the median of the 172 readings; 87% of them land within 2% of it, and the middle eight tenths of them run from 128.7 to 133.1 BPM.

At 128.8 BPM one beat lasts 465.8 milliseconds, so a sixteenth note is 116.5 ms and a dotted eighth 349.4 ms — the delay times for this recording. Counted half as fast it is 64.4 BPM, counted twice as fast 257.6. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 442.3 Hz, which is 9 cents above concert A at 440 Hz — the sort of drift a tape machine or a slightly different mastering leaves behind. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 1.94 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 0.949 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 C minor; the ones listed below are the closest in tempo.