Sequentia's Lost Songs of a Rhineland Harper (X & XI Centuries). We were lucky enough to see Benjamin Bagby and his medieval music ensemble, Sequentia, at Corpus Christi Church on 121st Street here in Manhattan last October. I found myself entranced by this strange, charismatic man and this strange, ancient music that he so obviously adores. And a couple days ago Chris very sweetly got for me the recording of the program that we saw. My favorite description, this of a piece entitled Veni, dilectissime: "Emerging from beneath the monastic censor's black ink, this is probably the oldest surviving erotic dance-song in Latin."