Are there any other guest stars on the album, besides Sufjan?
There are several. I know [Arcade Fire's] Richard Reed Parry did a lot of great stuff. [Doveman] Thomas Bartlett was all over it. There were a lot of great musicians playing interesting instruments: there was a bass clarinet, regular clarinet, there's strings, violin, viola, cello, there's brassâ¦it's all used in these textual shifts rather than like, 'here's the brass!' It's subtle shifts.
There are some great guest vocalists that did really awesome parts: [St. Vincent] Annie Clark, Sharon Van Etten, and Nona Marie Invie, from the band Dark Dark Dark.
http://gothamist.com/2013/03/22/drummer_bryan_devendorf_tells_us_ab.php