FLAC (Free Lossless Audio Codec) carries an implicit value judgment. Choosing FLAC over MP3 or streaming implies a commitment to sound quality, to the nuance of timbre and silence that lossy formats discard. An "index" of FLAC music therefore suggests an archive assembled by people who care not only about what songs exist, but about preserving them in their richest possible form. It’s an act of respect for the recorded artifact.