Music

Christian

• Cyber Hymnal. This site has over 3,800 Christian hymns and Gospel songs from many denominations. You’ll find lyrics, scores, MIDI files, pictures, history, and more.
• Digital Hymnal. Digital Hymnal, based on the Seventh-day Adventist Hymnal.
• CCF Chord Book. Guitar chords for various Christian songs.

Classical

• J.S. Bach's Classical Archives. Bach recordings.
• G.F. Handel's Classical Archives. Handel recordings.

Other references

• The Decline of Western Classical Music.