The contemporary Christian group Glad is one of the most consistently popular groups of the genre. This 'Collector's Series,' drawn from their eight-CD catalog, shows why: they've developed their own readily-identifiable sound (multi-layered, complex, big) and they do it really well. For example, 'Doer of Your Word' has the easy familiarity and sing-along refrain of a pop song, but beyond the surface the arrangement and production is simply stunning. Vocal trills, shifts of meter, countermelody upon countermelody utilizing voice as instrument-this is their standard modus operandi. Listening to the tracks over and over, one hears them differently each time, as if studying the brushstrokes of a painting individually. One new track, 'Praise To The Lord' by John Rutter, is an added bonus.