Dead Quiet

The RuneScape Wiki also has an article on: rsw:Dead Quiet

Dead Quiet (#183)
Released		13 July 2004 (Update)
Members		Yes
Location		Northern Mort Myre Swamp
Unlock hint		This track unlocks north of the Mort Myre Swamp.
Quest		Nature Spirit
Duration		06:30
Composer		Ian Taylor
Map
Advanced data
Cache ID		84

File:Dead Quiet.ogg13 July 2004This track unlocks north of the Mort Myre Swamp.84

Dead Quiet is a music track that is unlocked near the northern entrance of Mort Myre Swamp or at the shore east of the Digsite. It can also be unlocked while Temple Trekking, during the Bog puzzle, when battling the Swamp snakes, or during combat events with two escape routes.

Trivia

• It is possible, but difficult, to unlock the track during Temple Trekking. The player must complete the Nature Spirit, In Search of the Myreque, and In Aid of the Myreque quests without ever passing through the north-western part of the Mort Myre Swamp.
• According to data crowdsourced via RuneLite, approximately 99.81% of players unlock the track in the swamp, 0.17% unlock it east of the Digsite, and 0.02% unlock it during Temple Trekking.