EZlib is a Free MP3 Music Library and Playlist Manager Features: (1) Custom-Query on 14 ID3v2 tag fields and file dates to create a Working List (2) Single and mass ID3v2 Tag Update (3) Four user-defined, Custom ID3v2 tag fields (4) Four user-defined Music Rating Fields plus Tempo (5) Songwriter's aid (6) Playlist creation and maintenance (7) Playlist Tweaking at runtime (on-the-fly) (8) Search inside your Lyrics & Comments ID3v2 tag fields (9) Rename music files to match ID3v2 tag fields (10) Rename music files with a numeric prefix for CD writing in playlist order (11) Print Duplicate Titles List (12) Print Unique Artists List (13) Print: Working List, Playlists, Lyrics (14) Built-in, high quality MP3 player (15) Written in Assembly Language for speed