Exercise 78 demonstrates the Blues scale in the key of G. Its notes are G (1) Bb (b3) C (4) Db (b5) D (5) and F (b7). The fingering is the same as that of the C Blues scale.
Don’t forget to try all the things you have learned in the key of G as well as C. The following example makes use of 3rds in the key of G.