LA (Single) - 2009
Gabriel Kahane – 2008
Craigslistlieder – 2008
Walking Away from Winter (EP) – 2006
( iTunes )
Five Songs (EP) – 2005
( iTunes )
Other
Run Rabbit Run (2009) - Osso plays Sufjan Stevens (arranged "Year of the Rooster")
High Wide & Handsome (2009) - Loudon Wainwright III (piano on "My Mother & My Sweetheart)
Dark Was the Night (2009) - Various Artists (piano cadenza on Sufjan Stevens' "You are the Blood")
Songs for Cristmos, Volume 7 (2007) - Sufjan Stevens (sings and plays the piano on various tracks)