Rising the song's key one semitone in the reexposition

1. What raises a note one semitone in pitch?
2. How do you modulate one semitone up?
3. How many semitones does it take to change a key?

What raises a note one semitone in pitch?

In most cases, a sharp raises the pitch of a note one semitone while a flat lowers it one semitone. A natural is used to cancel the effect of a flat or sharp. ... An accidental can also be used to cancel a previous accidental or reinstate the flats or sharps of the key signature.

How do you modulate one semitone up?

The easiest way to achieve any modulation, semitone or otherwise, is to precede the first chord of the new key with the new key's dominant chord.
...

1. The abrupt modulation. ...
2. Inserting a minor bVII. ...
3. Re-interpreting an augmented-6 chord. ...
4. Changing flat-III to minor ii of the new key.

How many semitones does it take to change a key?

It's all about semitones – 2 semitones makes one whole note in the diatonic scale. So, to shift from C Major up to E Major we need to push everything up 4 semitones. The root notes will shift from C to E, and all the remaining notes will move up the exact same number of notes.