Choral filk, like it says on the box.  Coming in cold, it might be helpful to know this essential truth about the nature of relationships in a choir:

Altos like basses.
Bases like altos.
Tenors like tenors.
One soprano bonks the conductor, and the rest pick up at the disco.

That should be enough, I think.

• A Choral Oddity
• A Thousand Choirs A Day
• Always An Alto
• And The Bass Sings Low And Profoundly
• Babylon
• Bass Touch
• Bruckner Claus
• Every IV’s Sacred
• I Don’t Like Camp Food
• Jerusawoody
• Jon the Prevert
• Mister G!
• Mister Jeff
• Muriel’s Concert
• Now Oh Fuck
• Piano God
• Rubber Chicken
• Sing Low, Sweet Cameron
• Susilli
• The Bass Anthem
• The Choristers
• The Tenor Went Down To Canberra
• The War of the Choirs