Rock/ Elizabethan "jazz flute" - House of the King, from Focus

I remember this excellent single - House of the King, by Focus - being played in the sixth form common room in the middle 1970s. 

It features the "jazz flute" sound and style I like so much (but without any jazz improvisation), in context of a pseudo-Elizabethan Folk-Rock sound. 

Comparison's with Jethro Tull's Living in the Past are inevitable* - with a similar flute tonality, and similar use of an odd time signature with clusters of triplets, leading to a syncopated vibe (Living in the Past being in "5/4" i.e. 6/8 - 2/4; with House of the King mostly 6/8 - 3/4 - with an occasional dropped beat). 

If I was being critical - I'd say that House of the King is a bit over-produced, with too much going-on in the mix... a bit "commercialised" as I would have said at the time, from my then Progressive Rock perspective. 

Nonetheless, a really enjoyable and memorable piece - very well known at the time, now apparently all-but-forgotten.

*Actually, their instrumental Bouree is more analogous - but did not chart as a single.