B Major Pentatonic, Mapped for the Bass

B Major Pentatonic runs 5 notes to the octave, laid across this seat's EADG fretboard with every B marked. A blues phrase is short and keeps coming home to one pitch; the marked notes are where it comes home to.

Open, sunny, and hard to play wrong — with no half steps there is nothing to clash, so every note sits comfortably over a major chord. Warm, folksy, and singable.

Heard in: Country, bluegrass, folk, gospel, Southern rock, and countless pop hooks — from "Amazing Grace" to "My Girl".

On the bass a scale supplies the notes between one chord and the next — the steps a line takes on its way to the change — far more often than it is played as a run.

Whatever scale you start from, the blues bends it: the third and the seventh get pushed flat, or somewhere between flat and natural, and that pull against the chord underneath is most of what the idiom sounds like.