I got the school library to purchase Golijov's Ayre, and yesterday I had the chance to check it out and listen to it twice. I fall in between Alex Ross and Charles T. Downey, though much closer to Alex's opinion. I think Charles' problem (and Jens' in comments at ionarts) is that they approached the music as a classical work, an art song cycle. Ayre is a mongrel creature, a mix of pop, world music, art song, electronica, and performance art. The sixth song, "Wa Habibi," caught me off-guard the first time, with its heavy emphasis on glissanding synthesizers. But it has a unique charm, as does each song. Ayre somewhat reminds me of Bach's Magnificat. Each movement creates a specific character, with often sharp shifts from one movement to the next. Despite these radical differences, the work retains an overall cohesion. Ayre is definitely a lighter work, but I think it is a lot of fun to listen to, and recommend it to almost anyone.