F 7#9 — Dobro

No bar position in GBDGBD spells F 7#9.

F 7#9 is F – G# – A – C – D#, and no bar position on the dobro's GBDGBD strings sounds all of it — not straight across any fret, not on any short slant.

When a tune calls it anyway, the dobro plays the part of the chord a bar can reach, or a single-string line through it, and leaves the guitar and the mandolin to carry the rest. That is ordinary work for this seat, not a failure of it, and nothing is drawn here because a grip the bar cannot hold would be a lie.

F sits outside the four keys a circle usually calls, so it comes up rarely.