| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Key signature - Scales with flat key signatures |  |  |  |  |
| 3 | Major key | Number of flats | Flat notes | Minor key | Enharmonic equivalent |
| 4 | C major | 0 | - | A minor | None |
| 5 | F major | 1 | B♭ | D minor | None |
| 6 | B♭ major | 2 | B♭, E♭ | G minor | None |
| 7 | E♭ major | 3 | B♭, E♭, A♭ | C minor | None |
| 8 | A♭ major | 4 | B♭, E♭, A♭, D♭ | F minor | None |
| 9 | D♭ major | 5 | B♭, E♭, A♭, D♭, G♭ | B♭ minor | C♯ major/A♯ minor |
| 10 | G♭ major | 6 | B♭, E♭, A♭, D♭, G♭, C♭ | E♭ minor | F♯ major/D♯ minor |
| 11 | C♭ major | 7 | B♭, E♭, A♭, D♭, G♭, C♭, F♭ | A♭ minor | B major/G♯ minor |

Question: How many flats do the keys of F and B♭ major have?
Answer: F major (D minor) has one flat which is on the B; then B♭ major (G minor) has two flats (on B and E).