Make sure cameras are fully set up prior to shoot (focus, aperture, framerate, shutter speed, white balance, etc.)
One stationary (Main) Camera on tripod, shooting entire stage from front / center position.
When there is professional sound, main camera should get audio feed of mix from the board.
Main and hand-held shots need to be well composed. (Composition refers to the way elements of a scene are arranged in a camera frame. Shot composition refers to the arrangement of visual elements to convey an intended message).
Shoot entire artist performance without cuts, if not feasible, at minimum shoot entire songs without cuts.