PSYC56H3 Lecture Notes - Lecture 6: Hear Music, Principles Of Grouping, General Idea
Document Summary
Then they noticed if they took 3 major chords they can overlap and form a shape. One can set up a shape for majors and a shape for minors. By doing this you can use the shape to figure out a key of a piece of music is in. they took the 7 notes and expanded it to form a map of key space. You can fit that box to seven different major keys. You can also fit the minor box in and produce seven different minor keys. Now you take the second note and produce a box that has to fit the first and second note. By having an e and f#, c and. F# major are eliminated because they will not fit both notes. You just keep moving that box around and eventually it eliminates all keys except one.
