Length of the track. First number is minutes, second number is seconds.
Tempo of the track in beats per minute. If the track has multiple BPM's this won't be reflected as only one BPM figure will show.
Key of the track. This data comes from Spotify. I am actively working to ensure this is more accurate.
Average loudness of the track in decibels (dB). Values typically are between -60 and 0 decibels. Tracks are rarely above -4 db and usually are around -4 to -9 db.
A measure on how popular the track is on Spotify. Updates every two days, so may appear 0% for new tracks.
A measure on how suitable a track could be for dancing to, through measuring tempo, rhythm, stability, beat strength and overall regularity. Tracks near 0% are least danceable, whereas tracks near 100% are more suited for dancing to.
A measure on how intense a track sounds, through measuring the dynamic range, loudness, timbre, onset rate and general entropy. 0% indicates low energy, 100% indicates high energy.
A measure how positive, happy or cheerful track is. Values near 0% suggest a sad or angry track, where values near 100% suggest a happy and cheerful track.
A measure on the presence of spoken words. Values below 33% suggest it is just music, values between 33% and 66% suggest both music and speech (such as rap), values above 66% suggest there is only spoken word (such as a podcast).
A measure on how likely it is the track has been recorded in front of a live audience instead of in a studio. This is measured by detecting the presence of an audience in the track. Values over 80% suggest that the track was most definitely performed in front of a live audience.
A measure on how likely the track does not contain any vocals. Values over 50% indicate an instrumental track, values near 0% indicate there are lyrics.