The following information is quoted from “The Psalmody Project” //trinity-pres.net/study/psalmody.php Please refer to their website for more great information and links they offer. It is both concise and comprehensive. Highly recommended!
PSALMODY OVERVIEW & ASSORTED RESOURCES
Three+ ways to sing the psalms. http://www.stutler.cc/russ/sing_psalms.html This site gives a helpful explanation of the three ways to sing the Psalms: metrical singing, plainsong/plainchant, and Anglican chant. There are actually more ways than three, as they describe. In addition, the author provides links and helpful reviews for many print versions of the Psalter.
An Index to Aglican Chants. http://www.anglicanchant.nl/ This website hosts an ongoing project to gather as many Anglican chants as possible, complete with MIDI recordings of most chant tones.