In this case, there is already a C# in the key signature, so this key is the key of C#. The quicker way to determine this is to look at the sharps already in the key signature. This means that half step above B# is C#. Remember that there is a naturally occurring half step between B and C, which means B# is the same pitch as C. Why? The last sharp in this key signature is B#. It is not the key of E# because there is no E# in this key signature. This is the key of E because E is half step above D#, which is the last sharp in the key signature. This is the key of G because F# is the last sharp in the key signature.

Sharpsįor key signatures with sharps, the key signature is the note name half step above the last sharp. It is not the key of D because there is a D flat in the key. This is the key of D flat because D flat is the second to last flat in the key signature. This is the key of E flat because E flat is the second to last flat in the key signature. Here is a list of all of the different key signatures:įor key signatures with flats, the key signature is the second to last flat.

What is the order of sharps and flats