Where is A♯ on the guitar fretboard?
All 11 positions of A♯ (also known as B♭) on a standard-tuned guitar with 22 frets.
Practice finding A♯ →All positions of A♯
- 1st (high E) string · fret 6
- 1st (high E) string · fret 18
- 2nd (B) string · fret 11
- 3rd (G) string · fret 3
- 3rd (G) string · fret 15
- 4th (D) string · fret 8
- 4th (D) string · fret 20
- 5th (A) string · fret 1
- 5th (A) string · fret 13
- 6th (low E) string · fret 6
- 6th (low E) string · fret 18
About this note
A♯ (enharmonic with B♭) is the root of B♭ major — a common key for horn-driven music and jazz standards.
Tips for memorizing
Start with the lowest fret on each string. Notice the octave shapes — the same note repeats every 12 frets along a single string. Across strings, octaves form predictable visual shapes (e.g., 2 strings down + 2 frets up).
Try the interactive trainer to drill A♯ until it becomes automatic. Most learners get all six strings comfortable within a week of 5-minute daily sessions.