"Di quella pira" is a short tenor aria (or more specifically, a cabaletta) sung by Manrico in act 3, scene 2, of Giuseppe Verdis opera Il trovatore. It is the last number of the act.
Wenn Paris bei Nacht erstrahlt im hellen Lichterglanz...
"Heia, heia, in den Bergen ist mein Heimatland"
"Il dolce suono" ("The Sweet Sound") is the incipit of the recitativo of a scena ed aria taken from Act III scene 2, Lucia di Lammermoor by Gaetano Donizetti. It is also commonly known as the "mad scene" sung by the leading soprano, Lucia.
One of the latest operas (XVII century) which is still popular nowadays. Since the 1960s, the opera has been performed and recorded many times.
"Là ci darem la mano" (Italian for "There we will give each other our hands") is a duet for the characters Don Giovanni (baritone) and Zerlina (soprano) in Mozart`s 1787 opera Don Giovanni.