I think Ingo is wrong about "no 3/4 folk waltzes on this album". Kingdom of Gold falls into that category.
And can anyone explain what he means by "time changes", maybe? I have a vague idea, but I haven't studied music theory, so I'm really not sure. Sounds interesting, though, because he says it's typical for MK.
No, as I said in a comment on Ingo's site, celtic tunes (like kingdom of gold, let it all go, lily of the west,etc...) are NOT in 3/4, there most of the time are in 6/8.
It means there are 4 times in a bar, but each time is divided in 3, not in 2 or 4, like in 2/4 or 4/4.
That's the same difference between rock'n'roll which is "straight time " ("binaire" in french) and blues or jazz which is "shuffle" ("ternaire" in french)
Secondary waltz is in 3/4, because it's a waltz
but each time in a bar is divided in 2, not in 3
As for time changes, Ingo means different times in a bar.
Typical Marks music is based on bars with different times :
"Normally" a song in 4/4 would have all his bars with 4 times. But Mark like to include bars with 2 times in it, it brokes the rhythm.
Sorry for my poor english, hope it's clear