D flat major and E flat minor.
There can be a total of seven flats (or sharps) in a key signature.
The key of B flat major, or g G minor, has two flats. The flats are B flat and E flat.
A flat major and its relative minor are key signatures with four flats.
The F minor scale has four flats.
C flat major, seven flats.
D flat major is the major key with five flats and b flat minor is the minor key with five flats.
D flat major has five sharps
Db Major, or Bb minor.
The key of C major has no flats or sharps.c
No key has those specific flats and no others. Flats go in the order BEADGCF. A key with four flats would have B, E, A, and D flat.
The key with three flats (Bb, Eb, Ab) is the key of Eb.
There can be a total of seven flats (or sharps) in a key signature.
The key of B flat major, or g G minor, has two flats. The flats are B flat and E flat.
Bb C Db Eb F Gb A Bb Four notes have flats. The key signature would contain five flats for Bb minor, with accidentals used on the A naturals.
A flat major and its relative minor are key signatures with four flats.
Db major has 5 flats.
None. No key signature contains a mix of flats and sharps.