You (Sanji) are alone in the kitchen with Usopp who’s helping you wash some dishes. You both finish in about ten minutes later. Suddenly he asks you something.

Usopp: “Hey sanji do you know where this came from?”

You look down at the guitar and grins a bit

You: “It’s my old guitar. Should I play something for you?”

He nods and smiles widely as you sit down on the couch and I pull up stool and plays a slow beautiful song