The Calvin Hymnary Project - - An index with over 10000 entries focused on classic hymns, recent hymnals in the Reformed tradition, and worship music; with flexible browsing and searching; incorporates thousands of texts, media files, and background information.
Center for Church Music - - Includes several dozen hymns: text, MIDI and sheet music, with notes; schedule of radio programs featuring singing.
Cyber Hymnal - - Includes over 6500 lyrics and midi; scores; hymnology; links; software; "Autoplay".
Hymn Database - - Index of hymns from eight books from the UK, including some tunes and all public-domain texts.
HymnSite - - [500 lyrics; 300 midi; links; indexes; interaction: mailing list] public domain material from "United Methodist Hymnal, 1989", "The Standard Psalm Tune Book" (Henry E. Dibdin, 1851), and Isaac Watts' metrical psalter.
Name that Hymn - - Seeks help locating the original lyrics to certain hymns from the early 20th century.
Oremus Hymnal - - [1800+ lyrics; 900+ MIDIs; Episcopal/Anglican] Texts and tunes from 21 Anglican hymnals worldwide; hymn, tune, hymnal, liturgical, and lectionary indexes.
Remembrance Day Song - - Music in the style of a hymn with lyrics and song sheets. Inspired by a pilgrimage to World War Two cemeteries in Italy.
Sovereign Grace Hymns - - [lyrics; hymnology; Baptist] Hymns used in Primitive Baptist Churches of the American South.
Split Infinity Music - - [100 lyrics; 50 midi; inc. 10 carols] Song planning software; Song database program with automatic chord transposition; Commercial midi file creation and arrangement service.