I'm slowly catching up. The following dissertations were added to the list of MIR PhDs:
"Real Time Automatic Harmonisation" by Giordano Cabra. I couldn't find a link to the thesis, but I found a video of the defense. I'd love to see more defense videos (preferably in English).
"Modeling musical anticipation: From the time of music to the music of time" by Arshia Cont.
"Music Recommendation and Discovery in the Long Tail" by Oscar Celma. I highly recommend it!
"From Sparse Models to Timbre Learning: New Methods for Musical Source Separation" by Juan Jose Burred.
UPDATE: I totally missed Yves' announcement on the Music-IR list on Friday. I've added him now too:
"A Distributed Music Information System" by Yves Raimond.
UPDATE 2: Almost forgot that Kris finished recently too:
"Novel Techniques for Audio Music Classification and Search" by Kris West.
Please send me any I might have missed - thanks!