A semitone is one half-step.
B
To lower a note that's already flat, there is such a thing as a double-flat.
it makes the note a half step higher
Play the note higher up the scale, play the note eight notes higher up the scale to be exact. For example on a key board if you want to play a C one octave higher than middle C then you play the next C up the key board from middle C
"Flat" means to go down one semitone. Look at a piano (or similar) keyboard, and check what you have one to the left of "C". Since on a piano there is no black key between "B" and "C", the next semitone down from "C" is simply "B".
F sharp is the enharmonic.
Tone, semitone, tone, tone, semitone, tone + semitone, semitone.
F sharp is the enharmonic.
A double sharp is the enharmonic of B nature
The enharmonic tone for F is E sharp.
A semitone is one half-step.
An enharmonic note is a note that has two names but have the same fingering
Raised a semitone, it becomes F-sharp.
The enharmonic tone of Gb is F#. These notes are considered enharmonic equivalents because they sound the same pitch but are spelled differently.
The enharmonic of Db is: C#
enharmonic = a different letter name for the same key C flat.