The catharsis it provides.

Theres an air of unpredictability to the music, which feels very apropos for Damon Lindelofs unpredictable drama.

One of the main people responsible for the shows fantastic use of music is music supervisor Liza Richardson.

[Pilot editor Colby Parker Jr.] wanted really weird stuff.

They just didnt have the same power of this performance.

Then they have a sample, so [you have to license] that master [too].

Then on the publishing side, you have 10 writers that contributed to that song.

So, already right there you have 14 parties that youre licensing that one song from, she says.

In addition to Va Pensiero,The Leftovershas also used the brassy Overture fromNabuccoand excerpts from VerdisLa Traviata.

Were just big fans of opera, says Richardson nonchalantly about the shows love of the Italian composer.

Songs behave a certain way.

If they work, great.

Unfortunately, the record label didnt know either.

We finally reached Richard Gerner who confirmed he had written the arrangement.

1-800 Suicide by Gravediggaz is one of my favorites.

I also love the Ray LaMontagne [song This Love Is Over from episode 4].

It makes me cry.

The Leftoversseries finale airs Sunday at 9 p.m. on HBO.