I am making the following change: 
 "The title track also features Jonny Quinn and Rozanne Suarez of The Maisonettes on congas and vocals, respectively." 
 to 
 "The title track also features Jonny Quinn (on congas), Rozanne Suarez (on vocals) and The Maisonettes (on vocals)." 
 I spent fifteen minutes via Google trying to find any record that Jonny Quinn and/or Rozanne Suarez were members of the Maisonettes (since they weren't listed on the Wikipedia page for the band), and the only references I could find were directly quoting this article, so it seems likely to be false. 
 The credits for the album say "Belle & Sebastian feature The Maisonettes".  There are no credits for any of the band members, just the additional performances by Quinn and Suarez. 
 If anybody can find actual proof that either or both of these people were in that band, you can restore it, but you should also add the reference, and probably put their names on the band's page.