Just learning, when u say numbers I assume u r not talking about tab stuff but rather the numbers in the major scale?? Thanks so much
Yes! lets take two major scales, C major and Bb major and place numbers under each degree of the scale:
C D E F G A B C Bb C D Eb F G A Bb
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
now if I say play a 251 progression in the key C major you would play: D(2)-G(5)-1(C)
if I say play a 251 progression in the key of Bb major you would play: C(2)-F(5)-Bb(1)
Here's a G major scale: G A B C D E F# G if I say play a 251 progression in the key of G major what would you play