I cannot fault your reasoning! But you never know! Sometimes a certain instrument will just take fast.

[But that concludes the end of his line up.] Ah, just one moment! [He vanishes behind some odds and ends, only to return with a guitar.]

Care to try your hand at this one while I find a few others for you to look over? It's called a guitar, and you hold it like so. [He gives her a quick demonstration before moving to hand it over.]