A Most Cacophonous Lure/Transcript

Accepting the mission
Sir Hammerlock: "What ho, intrepid adventurer! It is a relief to see a friendly face. I've been trapped behind this gaseous miasma for ages! I had to survive on the entrails of... actually, we can put that behind us. You've come for another bout to the death with a horrifying creature, and by jove I've got just the one!"

Mission
Sir Hammerlock: "I have been using seismic sensors to track the movements of a truly gargantuan beast! Indeed, this creature will surely devour you whole! Ah, but that's only further roused your adventurous spirit, eh? Splendid!" Sir Hammerlock: "The creature will become highly agitated in reaction to a very specific range of low-frequency tones. Please set up the sonic agitation devices around the cavern." Sir Hammerlock: "This is the final beast on my Pandoran Safari check-list! To be candid, I am... unsure what I will do with myself once the hunt is over." Sir Hammerlock: "These devices will drop the ambient sonic atmosphere of the cavern, driving the creature into a bloodthirsty rage!" Sir Hammerlock: "Excellent! Now, activate the device to perform the sonic drop and summon the beast!" Sir Hammerlock: "Now, Vault Hunter! Drop it!"

End of mission
Sir Hammerlock: "You astound me once again, good Vault Hunter! Hips and huzzahs to you! (sigh) With my Pandoran Safari complete, I seem to be getting the metaphorical itchy feet. And not the literal flesh-eating Pandoran variety, no! This is wanderlust! A desire to roam freely! Perhaps it is time to make new travel arrangements. Visit exciting new worlds! And kill things there! Yes, yes! A new Safari! That's the stuff! Ah, this will be spectacular! Adventure, ho!"