Just noticed that Michael Joncas has a short critique of the event from three angles: the music used in the ceremony, liturgical art and environment, and the homily of the principal concelebrant Cardinal Marc Ouellet. It can be viewed and commented on at
http://www.praytellblog.com/index.php/2 ... -congress/ . He lists the music used in the Eucharist - but does not deal with the music that was used in the lengthy gathering rite (this was not broadcast in its entirety) and notes the use of music by Irish composers and, interestingly music from Lourdes, presumably given the international nature of the event.