freeyourmusic

Install command: 
brew install --cask freeyourmusic

Name: FreeYourMusic

Move playlists, tracks, and albums between music platforms

https://freeyourmusic.com/

Cask JSON API: /api/cask/freeyourmusic.json

Cask code: freeyourmusic.rb on GitHub

Current version: 9.12.0

Current version requires: macOS >= 10.15

Versions:

Intel sequoia 9.12.0
sonoma 9.12.0
ventura 9.12.0
monterey 9.12.0
big sur 9.12.0
catalina 9.12.0

Analytics:

Installs (30 days)
freeyourmusic 13
Installs (90 days)
freeyourmusic 26
Installs (365 days)
freeyourmusic 94
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