Upper Structure Triads Piano Chord Voicings. How to find all possible major and minor triads over IIm7, V7 and a method to practice them individually and over the IIm7 V7 progression for my students, since they are always asking how to comp and arrange songs using USTs. Here's a reharm for Blue in Green using USTs and other devices. To find all the possible USTs, the Decoding the Circle of Fifths system was used. There's a free online software to find and analyze structures and subsets. mCircle Here's a link for the UST book if you want to read more about it or buy it: UST Jazz Piano Voicings
