A rapid alternation between two adjacent notes

Trill is a commonly used ornament where the main note and the auxiliary note above it are rapidly alternated. The auxiliary note can be a whole or a half step above the main note. In general, they need to be played as short as grace notes, creating a similar effect to the vibrato but emphasizing the alternation between the main note and the auxiliary note.

Example of Trill

Clinic: Ornamentation - Trills

Writer: Frankie Chan