POP909

dataset·symbolic pop arrangement·active

Professional piano arrangements of 909 popular songs with aligned MIDI and structural annotations.

Recorded facts

Official site	https://github.com/music-x-lab/POP909-Dataset ↗
Geography	China
arxiv	2008.07142
github repository	music-x-lab/POP909-Dataset
size	songs: 909 · duration hours approx: 60
scope	Popular-song arrangement generation and symbolic MIR.
genres	popular music
steward	Music X Lab
creators	Ziyu Wang; Ke Chen; Junyan Jiang; Yiyi Zhang; Maoran Xu; Shuqi Dai; Xianbin Gu; Gus Xia
languages	Chinese and international popular-song metadata
modalities	MIDI; aligned audio references; tempo; beat; key; chord annotations
geographies	China; Global
access method	GitHub repository.
intended uses	music arrangement generation; symbolic music modeling; chord and beat research
related papers	POP909: A Pop-song Dataset for Music Arrangement Generation
annotation method	Tempo curves hand labeled; beat, chord and key annotations produced with MIR algorithms.
collection method	Professional musicians created multiple piano arrangements for selected popular songs.
current availability	Repository available.
us market scope basis	Publicly available or materially used in US-facing music/audio-AI research.
limitations biases disputes	Underlying popular-song compositions and reference audio are likely copyrighted.; Some annotations are algorithmic rather than expert ground truth.