H
Haiku
A form of Japanese poetry.
Half-beat
Half of a whole beat, if whole beat is a crotchet, the half-beat note is quaver.
Hand gestures
Signals made with the hands in order to direct performers to interpret the musical elements.
Harmony
The simultaneous sounding of notes that is agreeable and significant.
Higher than
Refers to pitch - one note is 'higher than the other'.
Home note
Or Tonic - refers to the Key of a piece of music (see key).