What's the difference between demisemiquaver and semibreve?

Demisemiquaver

Definition:

• (n.) A short note, equal in time to the half of a semiquaver, or the thirty-second part of a whole note.

Example Sentences:

Semibreve

Definition:

• (n.) A note of half the time or duration of the breve; -- now usually called a whole note. It is the longest note in general use.

Example Sentences: