There is no sound when the loading screen is showing when you travel to The Nether.
Related issues
Comments

Duplicate of MC-233.
@unknown: Yes.
There is no sound when the loading screen is showing when you travel to The Nether.
Duplicate of MC-233.
@unknown: Yes.
Swekob
(Unassigned)
Unconfirmed
Minecraft 1.4.5
Retrieved
Do you mean when the screen says "Downloading Terrain" ?