20.26Hear the bass degrees

In C:

C = 1

D = 2

E = 3

F = 4

G = 5

A = 6

Try to hear common bass progressions as numbers.

For example:

1 → 6 → 4 → 5

This is:

C → Am → F → G

Now transpose instantly.

In G:

G → Em → C → D