Concert Goes Wrong!

The singers in a live concert are out of control! As an audio technician, you have to make sure the santity of audience is in control! You must tune the pitch and volume of the singers before the sound reaches the audience.

Tutorial:

Up/Down  Arrows: switch singer

Left/Right  Arrows: switch bar

W/S: adjust pitch

E/D: adjust volume

Hurry up, don't make the audience loss their SANTITY!