Three
The key of A-flat major contains four flats: B, E, A, and D.
3. E,a,b
The key of E-flat major contains three flats: Bb, Eb, and Ab.
There are three flats in the key signature of E flat major
Two flats, B flat and E flat
E Flat Major has 3 G Flat Major has 6
C major: no sharps, no flats F major: no sharps, B flat Bb (B flat) major: no sharps, B and E flat Eb major: no sharps; B, E, and A flat Ab major: no sharps; B, E, A, and D flat Db major: no sharps; B, E, A, D, and G flat Gb major/F# (F sharp) major: no sharps; B, E, A, D, G, and C flat / F, C, G, D, A, and E sharp; no flats B major: F, C, G, D, and A sharp; no flats E major: F, C, G, and D sharp; no flats A major: F, C, and G sharp; no flats D major: F and C sharp, no flats G major: F sharp, no flats
There are two flats, B flat and E flat. It is the relative minor for B flat Major.
E flat
There are two flats in the key of B flat major: B flat and E flat.
3. Those are Bb, Eb, and Ab.
C major - No sharps or flats D major- 2 sharps (F,C) G major- 1 sharp (F) E major- 4 sharps (F,C,G,D)