For what it's worth, from last semester, here's a recording of me (and some other people...) trying to sing some music in just intonation. The composer (Eric Knechtes, friend and colleague) claims that it has some "11-limit" chords in it, and that it's "cheesy and sentimental," but anyway it's really fun to listen to. We're out of tune sometimes (I mean, out of just tune... well, and out of equal temperament too, for that matter) but parts sounds great - I especially love the bass and soprano sounds (thank you Paul Pisano and Arwen Myers - the latter an aural skills student of mine, thank you very much), and there are parts where you'd think it's more than 12 singers. Anyway, enjoy.
(Oh, and sorry it's on Myspace... not my fault!)

link