Score Attack

Benben Tsukumo's Focus Shot (a Touhou LW original). Bullets in the shape of a musical staff are shot out in this attack. The biwa was traditionally played by using its own musical notation, so the fact that Benben knows staff notation means that she somehow gained access to this knowledge from the outside world, or that her biwa was still in the outside world until recently. Regardless, it is thanks to this universal language of music that she can so easily play songs together with Raiko and the Prismriver Sisters.