Remember BCEF
There are 12 semitones in an octave.
All the naturals (letters) are 2 semitones apart except B to C and E to F, which are 1 semitone apart.
Not only that, but B-F is 6 semitones, whereas every other interval of 5 naturals is 7 semitones apart, such as A-E or C-G. This is important in understanding keys and key signatures.
BCEF is easy to remember because it’s so odd, like a hip-hop band name gone wrong: the BCEF.
So remember BCEF
If you found this post helpful, please feel welcome to like, share or leave a comment. If you have any questions, leave them as a comment and I’ll respond as soon as I can. To stay up to date with new posts, please subscribe.