Semitone
E – F and B – C, are a semitone apart (only half a tone).
All other notes are a whole tone apart, that is 2 semitones.
The semitone is the smallest interval in music.
Tone
Equal to two semitones (e.g. C – D).
Sharp
♯
Raises a note by one semitone.
Flat
♭
Lowers a note by one semitone.
Double Sharp
𝄪
Raises a note by two semitones.
Double Flat
𝄫
Lowers a note by two semitones.
Natural
♮
Cancels the previous accidental.
Guitar Fretboard with Notes
