Young Hearts Run Free

162 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 82% — put it in F major, a key signature of 1 flat. The tempo printed above is the median of the 162 readings; 82% of them land within 2% of it, and the middle eight tenths of them run from 115.3 to 120 BPM.

At 115.5 BPM one beat lasts 519.5 milliseconds, so a sixteenth note is 129.9 ms and a dotted eighth 389.6 ms — the delay times for this recording. Counted half as fast it is 57.8 BPM, counted twice as fast 231. A score would mark that Moderato, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441.8 Hz, which is 7 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 3.76 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 0.883 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 F major; the ones listed below are the closest in tempo.