Complete Season 2 music information.

2X01 - Little Green Men
 
Song Title: Brandenburg Concerto No. 2 in F
Composer: Johann Sebastian Bach
Used When: Mulder meets with Senator Matheson. Matherson asked Mulder if he'd like to hear the song again, Mulder replies "I live for Bach."   
Download: Real Audio
Composer also heard in 1x03 - Conduit, 4x12 - Kaddish

Song Title: Come Out and Play
Artist: The Offspring
Album: Smash
Used When: Mentioned in a conversation between 2 guys Mulder had phone tapped. One was at a strip club and said one of the strippers danced to this song.
Download:  Real Audio

 
2X06 - Ascension
 
Song Title: Red Right Hand
Artist: Nick Cave and the Bad Seeds
Album: Let Love In
Used When: Duane Berry was listening to it in the car radio when he had Scully in his car's trunk going up to Skyland Mountains
Download: Lyrics
 
Song Title: Radar Love
Artist: Golden Earrings
Album: Moontan
Used in: Mentioned
Download: Lyrics
Artist also heard in 1x13 - Genderbender

Song Title: Keeping Faith
Composer: Mark Snow
Album: -
Used in: The end scene

 
2X07 - "3"
 
Song Title: The Unheard Music
Artist: X
Album: Los Angeles
Used When: As Kristen took Mulder's hand and lead him to a couch in Club Tepes.(Thanks Kristy!)
Download:  Real Audio
Artist also heard in 4x13 - Never Again, The X-Files FTF Soundtrack

 
2X08 - One Breath
 
Song Title: Back from Eternity
Composer: Mark Snow
Album: -

 
2X13 - Irresistable
 
Song Title: Trios Gymnopedies
Composer: Erik Satie
Album: Satie: Piano Works / Aldo Ciccolini
Used When: Teaser - in the beginning at the funeral scene of Jennifer; Only the First Movement was played

 
2X14 - Die Hand Die Verletzt 
 
Song Title: The Night Chicago Died
Artist: Paper Lace
Album: 70's Party Killers
Used When: Mentioned - Mulder sarcastically said that this song was 'devil music' after the local sheriff of Milford Haven, New Hampshire, commented such music had probably inspired teens in town being involved with satanic cults. (credit: The Unauthorized X-Cyclopedia by James Hatfield/George Burt)
Download: Lyrics
 

2X20 - Humbug
 
Song Title: Frenzy
Artist: Screamin‘ Jay Hawkins
Album: Cow Fingers And Mosquito Pie
Used When: Hepcat Helm's first scene and when he was killed.
Download: Lyrics - Real Audio
Artist/song are also heard on Songs in the Key of X