The question at TIC: What does “prog” mean to you?  The English gentleman (and intellect), Greg Spawton of Big Big Train, answered:

To me, ‘progressive’ is a term which describes a genre of music. That genre emerged from the rock and pop music of the 60’s and became fully defined in the early 70’s. But what I think may be the sub-text behind your question is whether bands writing and performing music in the progressive genre need, by definition, to be striving for some sort of statement of originality in everything they do. I think not, but I am aware that many others take a more absolutist view of things and this has caused an endless debate. In The Music’s All That Matters, Paul Stump makes some very interesting observations. Early on in the book, he correctly identifies that the main problem with progressive rock is its name (he calls it ‘the most self-consciously adjectival genre in all rock’.) Another point that Paul Stump makes is about what unites the musicians of the genre. He says they have ‘a hankering after the transcendent’. I really like that phrase as it can take on a broader meaning than ‘progressive’. In Big Big Train, we combine our influences in a way, which is often original. But trying to do something different isn’t the be-all-and-end-all. What we are really trying to do is to make extraordinary music.

To read the whole interview (well, well worth it), go here:

http://www.imaginativeconservative.org/2012/06/english-autumnal-bliss-progressive-rock.html