This music was written specifically as incidental and theme music for "Green Wing". However, even if you're not a big fan of "Green Wing" the music works on its own merits, being an amalgamation of interesting themes and unusual sounding instruments which perfectly convey mood and humour, even if the track titles are a bit idiosyncratic. Very likely to be "borrowed" from your collection and never returned, this music will pop up all over the place - TV ads, radio announcements etc. for years.
Its cool, as is Trellis - lets hope for more soon.