How can we play a 12-bar blue bass line in may keys?

Music

In which century was blues music first played?

Where in America did the blues originate?

In early blues what instruments were used?

Name the song by Robert Johnson that we listened to in the lesson.

Which three notes did we play for a 12 bar blues bassline in C?

If we transpose the 12 bar blues structure to F, what three pitches would we play?