There is often a stigma attached to the term ‘concept album’ that can generally be found rooted in the lank-haired, progressive rock of the 1970’s and 80’s, and as such, it can be difficult to dissolve any predispositions of the description without looking both further back than this era of musical history, as well as further forward. Davis and Coltrane produced some outstanding examples of conceptually driven jazz back in the 1940’s and 50’s; Philip Glass has explored minimalist and modern classical music beyond the boundaries of the ordinary for half a century or more and in the past 20…