Elk punt op de tijdlijn is een releasejaar en toont het gemiddelde audioprofiel — dansbaarheid, energie, stemming en meer — van de nummers uit dat jaar. Wissel kenmerken, beperk de jaren of focus op specifieke stations om te zien hoe de klank van muziek door de tijd is veranderd.
Gemiddelden betreffen unieke nummers uitgebracht tussen 1954 en 2027, waarbij elk nummer één keer telt, ongeacht hoe vaak het is gedraaid. Jaren met minder dan 5 nummers worden verborgen.
How suitable the track is for dancing based on tempo, rhythm stability, beat strength, and overall regularity. Higher values indicate more danceable music.
Intensity and activity level. Energetic tracks feel fast, loud, and noisy (like death metal), while low energy tracks are calmer (like a Bach prelude).
Musical positiveness of the track. High valence sounds happy, cheerful, and euphoric. Low valence sounds sad, depressed, or angry.
Confidence that the track is acoustic. A value near 1.0 indicates high confidence that the track uses acoustic instruments.
Presence of spoken words in the track. Values above 0.66 indicate tracks made entirely of spoken words. Values between 0.33-0.66 indicate mixed content (rap, spoken intros).
Prediction of whether the track contains no vocals. Higher values indicate more instrumental music without vocals.
Probability that the track was performed live with an audience. Values above 0.8 strongly suggest live recordings.
The tempo of the track in beats per minute (BPM). Typical ranges: slow ballads (60-80 BPM), pop music (100-130 BPM), dance music (120-150 BPM).
The overall loudness of the track in decibels (dB). Loudness values are averaged across the entire track. Values typically range between -60 and 0 dB.