EZlib is a Free MP3 Music Library/Playlist Manager written in assembly Langue.

EZlib features a front-end Title/Artist search which can be used to build a more refined working list of songs. Other features include: single and mass ID3v2 Tag Update functions, four Music Rating categories (and Tempo), four user-defined Custom ID3v2 Tag Fields, an internal tag search on lyrics and comments, a unique PlayList Manager with on-the-fly runtime Playlist Tweaking, the ability to print the music library in multiple sorts and to print lyrics, comments, and playlists. Files can be renamed to match tag fields. The program has a built-in player.

Unique Features:
1. Title or Artist search to create a Working List
2. 4 user-defined, Custom ID3v2 Tag Fields
3. 4 user-defined Music Rating Fields plus Tempo
4. Playlist Tweaking at runtime
5. Search inside your Lyrics & Comments ID3v2 Tag Fields
6. Multiple Print options
7. Built-in, high quality player
8. Written in Assembly Langue for speed