i just posted this in
melted_snowball's LJ but it's a question more than one of you might have. these are the shapenote recordings that i would recommend off the top of my head:
if i could only have one shapenote recording, i would pick Sacred Harp Chattahoochee Singing Convention Day 2 (i have never heard day 1) which is the third item down on this page:
http://www.morningtrumpet.com/ two disks--lots of variety of songs, completely traditional. but so many of the traditional recordings are bad quality or the tonal quality is too nasal for the non-regional ear, in my opinion.
another one i like is:
Traditional Musics of Alabama, Volume 3
2002 National Sacred Harp Singing Convention
http://alabamafolklife.org/AFApublication.htm#musics3 which includes a recording of "new agatite" which is a song i lead all the time but there is no mp3 on the pilgimproduction site i often include links from.
the first "shapenote" recording i ever heard was:
Rivers of Delight (American Folk Hymns From the Sacred Harp Tradition)
http://www.amazon.com/Rivers-Delight-American-Sacred-Tradition/dp/B000005IVY/ref=pd_bbs_sr_1/102-8270429-6597752?ie=UTF8&s=music&qid=1186850160&sr=8-1 this one is kind of "if a choral group did shapenote" so it is authentic songs but not authentic sound--but it roped me in, so i think it's good at that.