Alone

252 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 83% — put it in D flat major, a key signature of 5 flats. The tempo printed above is the median of the 252 readings; 98% of them land within 2% of it, and they barely differ at all.

At 87.4 BPM one beat lasts 686.5 milliseconds, so a sixteenth note is 171.6 ms and a dotted eighth 514.9 ms — the delay times for this recording. Counted half as fast it is 43.7 BPM, counted twice as fast 174.8. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 439.7 Hz, which is 1 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 5.15 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 0.663 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.