What is a Hemidemisemiquaver?

Hemidemisemiquaver is a type of musical note that is used in some musical compositions. It is a type of quaver, which is a note that is one half of a semiquaver. A semiquaver is a note that is one half of a quarter note.

In other words, a hemidemisemiquaver is a note that is one half of a semiquaver, or one quarter of a quarter note. It is a very short note, and it is often used in fast-paced musical passages to add complexity and interest to the music.

Here's an example of how you might notate a hemidemisemiquaver:

In this example, the note head is a filled-in oval, and the stem is a vertical line that extends down from the note head. The flag at the end of the stem indicates that the note is a hemidemisemiquaver.

I hope this helps! Let me know if you have any other questions.