Prof. Child was a literature professor and was not interested in tunes. Bronson collected tunes, but has been out of print for a while and copies go for too much money on ebay. Heritage Muse is planning a digital Bronson, which sounds wonderful, but it will be a while before it appears.

There are many wonderful CDs of Child ballads sung by source singers and careful revival singers. Here are a few:

Classic Ballads of Britain and Ireland, volumes 1 and 2, Rounder
The Muckle Sangs: Classic Scots Ballads, Greentrax
Voice of the People, vol 3 and 17, Topic
Ballads, Fellside
Child Ballads, 3 CDs, Ewan MacColl
Blood and Roses, 5 CDs, Ewan MacColl & Peggy Seeger
Ballads from her Appalachian Family Tradition, Jean Ritchie
Ballad Tree, Alison McMorland
Ballads Thrice Twisted, Margaret MacArthur
Songs from Aberdeenshire, John Strachan
Ballad Legacy, Texas Gladden
On ae bonny Day, Moira Craig

all available from Camsco Music :-)