Try "Songs Of Ceremony" Folk Songs of Britain vol. #9 on Topic 12T197 collected by Peter Kennedy copyright 1961. Here's a list of the songs. Cornish Wassail Song, New'r Even's Song, the Mari Lwyd Ceremony, Joys Of Mary, Holly & The Ivy, !2 Days of Christmas, Bitter Withy, As I Sat On A Sunny Bank, The Singing Of The Travels, Divers & Lazarus, Gower Wassail Song, Taladh An Leinibh Losa, St. Clement's Song, The Shrove Tuesday Song, Shephards Arise, Cherry Tree Carol, Somerset Wassail Song, Hunting The Wren, Cheshire Souling Song, Six Jolly Miners, John Barleycorn, Hal-An-Tow, Huntingdonshire May Carol, Cornish May Carol.

Though not alot on the solstic side of things but these field recordings of the various seasonal ceremonies are well worth a listen. Barry