Hard to Concentrate

168 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 81% — put it in G major, a key signature of 1 sharp. The tempo printed above is the median of the 168 readings; 84% of them land within 2% of it, and the middle eight tenths of them run from 105.4 to 148.5 BPM.

At 105.4 BPM one beat lasts 569.3 milliseconds, so a sixteenth note is 142.3 ms and a dotted eighth 426.9 ms — the delay times for this recording. Counted half as fast it is 52.7 BPM, counted twice as fast 210.8. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 439.9 Hz, which is 0.5 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 3.59 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 0.835 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 G major; the ones listed below are the closest in tempo.