What is the major key represented by 4 flats?

The major key represented by 4 flats is A flat Major. When identifying the key signature, each flat corresponds to a specific note being lowered by a half step. In the case of A flat Major, the four flats present in its key signature are B flat, E flat, A flat, and D flat.

This key is important to recognize for various reasons, such as understanding the scale and chords associated with A flat Major. A flat Major consists of the notes A flat, B flat, C, D flat, E flat, F, and G.

The other options do not represent 4 flats correctly; C flat Major has 7 flats, E flat Major has 3 flats, and B Major has 5 sharps.