The MTG-Jamendo dataset is an open dataset for music auto-tagging. The dataset contains over 55,000 full audio tracks with 195 tags categories (87 genre tags, 40 instrument tags, and 56 mood/theme tags). It is built using music available at Jamendo under Creative Commons licenses and tags provided by content uploaders. All audio is distributed in 320kbps MP3 format.
A subset of the dataset is used in the Emotion and Theme Recognition in Music Task within MediaEval 2019.Source: https://mtg.github.io/mtg-jamendo-dataset/