Which minor key corresponds to 3 flats?

The minor key that corresponds to 3 flats is F minor. In musical notation, the key signature for F minor includes B♭, E♭, and A♭, which totals three flats.

F minor is relative to the major key of A♭ major, which also has the same key signature with three flats. Understanding the relationship between major and minor keys, particularly how they share key signatures, helps to clarify that F minor is indeed the correct choice.

In this context, it’s significant to recognize that while E minor has just one sharp, C minor has three flats (but is not the correct answer here as it corresponds to C minor, which has a different relationship) and D minor has one flat. The distinctions in key signatures are crucial for identifying the correct minor key in relation to flat counts.