Kelvin, You actually caught a mistake on the roman numerals! Thanks, I’ll have to fix that. The first and last chords of the progression are not 7th chords. Somehow I inadvertently typed “I7″ on the first chord of all the major keys. (Notice that I didn’t do that for the minor keys.)
C Major Scale (no sharps or flats) C D E F G A B C G Major Scale (1 sharp) G A B C D E F# G D Major Scale (2 sharps) D E F# G A B C# D A Major Scale (3 sharps) A B C# D E F# G# A E Major Scale (4 sharps) E F# G# A B C# D# E
Following up and expanding on a post about learning music theory with Auto-tune. See also a post about the major scale modes and an intro to minor keys. So maybe you want to write a song or an instrumental in a particular mood or style, and you’re feeling overwhelmed by all the scales. Here’s a handy guide to the commonly used scales in western pop, rock, jazz, blues and so on.