She asked if he was wanting Imagine by John Lennon and he said yes.
She quickly found the chords and started playing and singing it for him. She played it through a few times and during one of the times she was just playing the guitar - not singing - he was singing along. Then I see him start to build a sentence on his computer and saw he was singing one of the lines.
He tried three times to spell "Dreamer" and couldn't find it on his word list, so I helped him with that one after asking if that was what he was trying to spell.