Mendelssohn: The Complete String Quartets (Bonus Track Version) Emerson String Quartet Release Date: January 25, 2005 Total Songs: 11 Genre: Classical Price: $34.99 Copyright (C) 2005 Deutsche Grammophon GmbH, Hamburg

How, exactly, can the "complete" string quartets come in a version with a "bonus track?" Is the regular version "complete" or not?

The "bonus" appears to be Mendelssohn's Octet in E Flat Major, Op. 20, which is not technically a string quartet. Still, the name is bad.

This album is the oddest I've seen on the iTunes Music Store. The description says "11" songs, but there are really 38, in 9 separate "works." In fact, this album's listing has disclosure triangles for movements of individual string quartets. I didn't know the iTunes Music Store could do that.

Maybe I should win a bonus track for figuring it out. (Via iTunes 75 New Releases.)