Carnegie Hall Listening Adventures
"Learn about sound, music notation, text, and instruments in a fun, interactive exploration of musical repertoire. Although designed primarily for those aged 6-12, these engaging games allow both kids and adults to experience great music while learning music concepts in a stimulating environment."
CHICO Instrument Encyclopedia
"A sampling of some of the world's most interesting musical instruments."
Classical Net Composer Reference List
Links to biographies of Classical Music Composers, arranged from the Medieval through Modern periods.
Classics for Kids
This site produced by Cincinnati Public Radio, offers lesson plans, podcasts, and games for teaching kids about classical music.
Creating Music
An engaging site that allows students to compose and listen to original short pieces of music.
Essentials of Music
This site has overviews of the six main periods in music history, brief bibliographies of famous composers, and a glossary with 200 definitions containing musical examples.
History In Song
This is a nice collection that reflects key periods in 20th Century U.S. history. Included are lyrics and recordings for many of the songs.
Museum of Musical Instruments
"The MoMI.org is the world's first virtual museum dedicated to appreciation of the musical instrument as a work of art and historical icon."
New York Philharmonic: Kidzone
Learn about instruments, create your own music, meet composers and soloists, and much, much more at this kid-friendly site!