This is a guide for the “Farewell Melody” standard quest in Xenoblade Chronicles 3.
How to Start
You can begin this quest when you first have access to the Yzana Plains. Near the center of the upper half of the plains, a short distance south-west from Colony 9, you can find Lenny the quest-giver.
Poor guy lost his buddies to some vicious monsters and wants to give them a proper send-off. Since Noah is Colony 9’s Off-Seer, he naturally volunteers for the task.
Where to find Sonata Saddleback
Once there, you must defeat three Level 5 Grave Bunnits. With some proper teamwork and the perks of being the protagonists, you shouldn’t meet the same fate as Lenny’s fallen comrades. Afterwards, approach the nearby sidequest marker to play a song.
Now return to Lenny, who’s waiting at his original spot, to report the quest.