I wrote a CTS booklet called Music in the Liturgy, which has been reviewed in a number of places.
My own account of writing the booklet is on the CTS Catholic Compass blog, which also quotes from the letter that Cardinal Burke wrote on receiving his copy.
Reviews have appeared by:
Christopher Hodkinson in the Newsletter of the Schola Gregoriana of Cambridge, Spring 2013 (starts on p.); and in Sacred Music 139.3 (Fall 2012), 70-72.
Christopher Francis in Latin Liturgy, Lent 2013 (starts on p. 17).
See also R.J. Stove, "Catholic Music is Actually Getting Better", Catholic Herald, 30 August 2013.
Kathleen Pluth at the Chant Café.
Leutgeb at Bara Brith. See also here.
James at Catholic and Loving It.
Fr Tim Finigan at The Hermeneutic of Continuity.
Evelyn Stell at the Organists' Blog.
The Choir of St Columba's RC Church, Glasgow blog.
Just after updating this post on Thursday (17 July 2014), I learnt that Stratford Caldecott, who commissioned and edited the booklet for the CTS, had died earlier that day. In memoria aeterna erit justus.