Ruins
Snowdin
Waterfall
Hotland
Other
1

The name says is very heavily related to the subject

Ruins

1

This song plays in Snowdin Town

Snowdin Town

1

This song plays while you run away from Undyne

Run!

1

This song has the longest title in the Undertale Soundtrack

Can You Really Call This A Hotel I Didn't Receive A Mint On My Pillow Or Anything

1

This is the most popular song on the Undertale Soundtrack

MEGALOVANIA

2

This song plays in Toriel's house and has a music box version

Home

2

This is Papyrus's main theme

Nyeh Heh Heh!

2

This song plays in a secret village

Temmie Village

2

This is Mettaton EX's fight theme

Death By Glamour

2

The first song in the game

Once Upon A Time

3

This song often causes anticipation to new players

Anticipation

3

This is the first song you hear in Snowdin

sans.

3

Mad Dummy's theme

Dummy!

3

This is Mettaton NEO's fight theme

Power of NEO

3

This song is ignored completely by the Untertale community

Bring It In, Guys!

4

This is Toriel's battle theme

Heartache

4

This song plays in the room where you face Glyde

Mysterious Place

4

This song plays during the Undyne the Undying fight

Battle Against A True Hero

4

This is Mettaton's fight theme

Metal Crusher

4

This was originally going to be in the Sans fight, but never actually appears in the game

Song That Might Play When You Fight Sans

5

This song plays when Toriel tests your independence

Unnecessary Tension

5

This song plays when Sans tells you about Flowey talking to Papyrus

Premonition

5

This song plays when you first meet Undyne

Undyne

5

This is the theme of Hotland's secret boss

Wrong Enemy!?

5

This song never made it on the Undertale Soundtrack and doesn't appear in the game normally, but the character is said to have AT 666 and DF 666

Gaster's Theme