Both members and non-members can access detailed musicological information for each work: movements, genre, principal instruments, year of composition, and key.

Because of the Contextual Metadata Engine, visitors can search and cross-reference by various relevant criteria: composer, work title, artist, albums, historical period, instrument, and genre, in order to find and compare different recordings.

[7] As of May 22, 2011, the Classical Archives database features 12,046 composers, 42,744 recording artists, and 26,697 Albums from 268 labels.

These include the classical catalogues of Universal Music Group (Deutsche Grammophon, Decca, Phillips, ECM, etc.

), and many independent labels through IODA (Harmonia Mundi, Nimbus, Summit, etc.).