Mixed in Key - Mixed In Key is award-winning DJ software that gives you the #1 technique of the world's best...
MusicBrainz Picard - Official website for MusicBrainz Picard, a cross-platform music tagger written in Python.Downloads · MusicBrainz Blog · Picard 2.
beaTunes - Smart software for library management, music analysis, and playlist creation. For Windows and macOS.
TagScanner - TagScanner is a multifunction program for organizing and managing your music collection.
Tunebat - A browser based song key and bpm database. Supplies compatible songs for harmonic mixing.
Tag&Rename - Tag & Rename is a music files tag editor that conveniently controls all famous audio formats.