The video had NMB48's Yamamoto Sayaka performing a rendition of Manatsu no Sounds Good with Youtube guitarist, Hidenori.
The video can be seen here.
Man Hidenori really does have mad skills!
And I know Sayanee's skills is nothing much in comparison, but he taught that to her, and she learned it within a day.
Quick learner indeed XD
Proud of her, she did well.
And the 48family really should have more of these kind of hands on experience for the girls' different aspirations. :3