I guess he was my first tutor in modern harmony.

Though Take 6 writes original material, traditional spirituals dressed up in modern harmonies are the backbone of its repertory.

He is cited as a jazz guitarist who uses modern quartal harmony.

Remaining lost, however, are the sketches for Liszt's treatise on modern harmony.

"It's virtuosic in technique - totally classical, with modern harmony," he said.

"He was the first pianist I ever heard playing modern harmonies and playing them with heart."

He prepared himself for that task, he wrote, "by further study in counterpoint and modern harmony."

But this is just a starting point, as Vig and Murray explore each song with thoroughly modern harmony.

Liszt also worked until at least 1885 on a treatise for modern harmony.

Hill has his own dark, modern harmonies.