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227 independent analyses of this recording were submitted to AcousticBrainz. Fewer than half of them — 13% — put it in D flat major, a key signature of 5 flats. The tempo printed above is the median of the 227 readings; 18% of them land within 2% of it, and the middle eight tenths of them run from 90.1 to 163.3 BPM. That is a recording the detector cannot settle on — the readings are spread far enough that the median is a summary of a disagreement rather than a measurement anybody should trust to the decimal.

At 123 BPM one beat lasts 487.8 milliseconds, so a sixteenth note is 122 ms and a dotted eighth 365.9 ms — the delay times for this recording. Counted half as fast it is 61.5 BPM, counted twice as fast 246. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 434.2 Hz, which is 23 cents below 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 3.47 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 0.917 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 flat major; the ones listed below are the closest in tempo.