Mandolin Fills With F# Blues

F# Blues runs 6 notes to the octave. Below it is laid onto this chair's GDAE fretboard with every F# marked, because what a fill needs mid-song is not the pattern — it is where the root is when the chord changes under it.

The minor pentatonic with a b5 "blue note" wedged in — that one extra note adds grit, tension, and a sly, vocal quality. Tough, expressive, and unmistakably bluesy.

Heard in: Blues, rock, jazz, rhythm and blues, and boogie-woogie — Delta and Chicago blues, Hendrix, Clapton, Stevie Ray Vaughan.

A mandolin fill is short and often tremolo-doubled, so the scale here is a source of two- and three-note runs between the vocal phrases, not a ladder to climb.

Play it slowly against the audio until the shape stops being a shape, then take it to a song in F# and let the melody pick its own notes out of it.