Keywords: Neighbouring triads spiral.svg thumb right This file uses w duodecimal duodecimal digits for the keys The 24 triads on the piano keyboard arranged in a circle with key numbers from 0 to 11 Major triads start and end with red keys minor triads with blue keys <br> Major thirds are represented by slightly thicker gray lines <br> Black keys have a gray background thumb right The w Tonnetz tonnetz also shows the neighbouring triads but also the parallels A minor left and a major triad right are relatives R like a/C <br> A major left and a minor triad right are leading-lone exchanges L like F/a or C/e own Mate2code Music diagrams with duodecimal signs Triads music Cc-zero |