Classical

MIDI@ (23)
MP3 (31)
Streaming MP3@ (9)

See also:

Arts: Music: Styles: C: Classical (2,053)

American Mavericks - Streaming audio of works by 20th century American composers, including Cage, Cowell, Adams, Babbit, and Copland.
Classical Archives - Includes thousands of files (MIDI, MP3, and Windows Media Audio) from over 1000 composers.
Classical Piano Midi Page - Includes over 40 MP3 files of classical piano music realized by Bernd Krueger.
Classical Piano Short Pieces - MP3 and MIDI recordings of sequenced performances.
ELIXIR's MIDI Page for Classical Guitar - MP3 sequences; MIDIs fine-tuned to Roland Sound Canvas SC-88. [Japanese/English].
Ian Partridge, Tenor - A few audio and video tracks by Tchaikovsky, Schubert, and Ivor Gurney.
J.S. Bach Organ Music - Numerous works performed by various organists on the grand Marbella Organ in Spain.
Karadar Bertoldi Ensemble - Popular classical selections in MP3 and MIDI formats.
Kunst der Fuge - Thousands of free classical music files (MIDI, MP3, WMA, Real) of fugues and other contrapuntal music.
Limburg Cathedral Boyschoir - Choral music by Mozart, Mendelssohn-Bartholdy, Rutter, and Rheinberger.
Lisztonian - Classical piano music performed by Jeremiah K. Jones.
Mackay-Smith Index - Catalogue of instrumental music includes classical MIDI and WAV files.
Michael's Classical Piano Site - MP3 and MIDI files of classical piano music.
Musical Selections - Classical piano music by a wide variety of composers.
Opus100 - Streaming RealAudio excerpts of many classical works.
Russian Art Songs - MP3 and RealAudio selections from several centuries of Russian vocal chamber music.
SuperConductor - Classical music performances created with SuperConductor software.
Tubalate - Tuba and euphonium quartet shares RealAudio excerpts from their CDs.
Wikipedia - List of free classical music recordings, mostly in ogg format, available at Wikipedia.