music: Modern Rock: Classic modern rock band who sang "I Wanna Be Sedated."?

Questions

(It.) - (I) The rapid reiteration of a single note. (2) The rapid alteration between two or more notes.?

- Organ device of producing a vibrato effect by alternately increasing and decreasing the wind pressure.?

- A lively Cossack dance in 2 / 4 time.?

- A three-note chord (e.g. C E G with E and G being a third and fifth above the lowest note C). ?

- A musical ornament consisting of rapid alternation starting with the written note and then the note above. In the 17th and 18th centuries the trill started with the note above and then the note below. Also known as shake.?