what-is-4-flats

what is 4 flats what is 4 flats in music what is 4 flats key what key is 4 flats in music what minor is 4 flats what note is 4 flats what key is 4 flats in treble clef what chord is 4 flats what key is 4 flats in bass clef what does 4 flats mean