American Mavericks
- Streaming audio of works by 20th century American composers, including Cage, Cowell, Adams, Babbit, and Copland.
- http://musicmavericks.publicradio.org/listening/

Wikipedia
- List of free classical music recordings, mostly in ogg format, available at Wikipedia.
- http://en.wikipedia.org/wiki/Wikipedia:Sound/list

SuperConductor
- Classical music performances created with SuperConductor software.
- http://www.superconductor.com/mp3.htm

Tubalate
- Tuba and euphonium quartet shares RealAudio excerpts from their CDs.
- http://www.dwsolo.com/tubalate.htm

Musical Selections
- Classical piano music by a wide variety of composers.
- http://www.musicalselections.com

Classical Piano Short Pieces
- MP3 and MIDI recordings of sequenced performances.
- http://pianomidi.org/

Lisztonian
- Classical piano music performed by Jeremiah K. Jones.
- http://www.lisztonian.com

Karadar Bertoldi Ensemble
- Popular classical selections in MP3 and MIDI formats.
- http://www.karadar.it

J.S. Bach Organ Music
- Numerous works performed by various organists on the grand Marbella Organ in Spain.
- http://www.johann-sebastian-bach.org/

Kunst der Fuge
- Thousands of free classical music files (MIDI, MP3, WMA, Real) of fugues and other contrapuntal music.
- http://www.kunstderfuge.com/

Limburg Cathedral Boyschoir
- Choral music by Mozart, Mendelssohn-Bartholdy, Rutter, and Rheinberger.
- http://www.limburger-domsingknaben.org/english/mp3.htm

Russian Art Songs
- MP3 and RealAudio selections from several centuries of Russian vocal chamber music.
- http://www.classicalmusic.spb.ru/music-mp3/

Mackay-Smith Index
- Catalogue of instrumental music includes classical MIDI and WAV files.
- http://www.lib.virginia.edu/dmmc/Music/MackaySmith/

ELIXIR's MIDI Page for Classical Guitar
- MP3 sequences; MIDIs fine-tuned to Roland Sound Canvas SC-88. [Japanese/English].
- http://www.guitarsound.net/elixir/

Princeton Sound Kitchen Internet Radio Show
- 3 hours of music by composers at Princeton University, in MP3 and RealAudio.
- http://silvertone.princeton.edu/radio/

Ian Partridge, Tenor
- A few audio and video tracks by Tchaikovsky, Schubert, and Ivor Gurney.
- http://www.ianpartridge.pwp.blueyonder.co.uk/audio.html

Classical Archives
- Includes thousands of files (MIDI, MP3, and Windows Media Audio) from over 1000 composers.
- http://www.classicalarchives.com/

Classical Piano Midi Page
- Includes over 40 MP3 files of classical piano music realized by Bernd Krueger.
- http://piano-midi.de/midicoll.htm

Michael's Classical Piano Site
- MP3 and MIDI files of classical piano music.
- http://www.88-keys.com/

Steve Sycamore
- Original 21st century art music in MP3 and MIDI format.
- http://sycamore.inr.net/music