G#
It is a note a half step above or below the original note (a sharp or flat).
your bum
The 7th note (leading note) is raised by a semitone in a harmonic minor scale.
It is half a note in pitch
Any note which has the word 'sharp' in it is always a semitone above the given note.
To determine what the seventh note (leading note) is in a minor scale, you need to determine which minor scale you are playing. The seventh note of a natural minor scale, you take the note which is a whole tone (2 notes) below your tonic (the note which is the name of your scale). Example: In A natural minor scale the leading note is G. The seventh note of a harmonic minor scale is a semitone (1 note) below your tonic note. Ex: In E harmonic minor scale, the leading note is D sharp. The seventh note of a melodic minor scale (ascending) will be a semitone below your tonic note, like your harmonic minor scale. Descending the melodic minor scale reverts to its natural state, therefore your seventh note will be a whole tone below your tonic.
semitone. B to C and E to F are semitones
flat
B
To lower a note by a semitone, you would use the flat (♭) symbol. For example, if you have the note C and you want to lower it by a semitone, you would play C♭. Similarly, if you needed to lower D, you would use D♭.
B
c flat. the semitone above b flat is b, with is equal to c flat. So the diatonic semitone is c flat because it has to be a different note name.