McGill Billboard Project

dataset·chord structure annotations·active

Chord, structure and feature annotations for a sampled set of Billboard-chart songs.

Verified facts

Official site	https://ddmal.ca/research/The_McGill_Billboard_Project_%28Chord_Analysis_Dataset%29/ ↗
Geography	Canada
size	sample slots: 890 · distinct songs: 740
scope	Popular-music harmony and structural analysis.
genres	Billboard popular music
steward	McGill DDMAL
creators	John Ashley Burgoyne; Jonathan Wild; Ichiro Fujinaga
languages	primarily English-language chart music
modalities	chord annotations; structural annotations; audio features; song metadata
geographies	United States chart repertoire
access method	Annotations and features from the DDMAL project page; audio not provided.
intended uses	chord recognition; structural analysis; MIR evaluation
related papers	An Expert Ground Truth Set for Audio Chord Recognition and Music Analysis
annotation method	Independent expert chord annotations plus SALAMI structural metadata.
collection method	Random sample of Billboard chart slots; audio not distributed for every entry.
current availability	Annotations available; audio unavailable in canonical package.
us market scope basis	Publicly available or materially used in US-facing music/audio-AI research.
limitations biases disputes	US chart sampling excludes much global and noncommercial repertoire.; 890 slots map to 740 songs because sampling can repeat titles.; Audio is not distributed.
related models tools benchmarks	SALAMI; MIREX chord tasks