which of the following instrument groups are typically included in a beijing opera orchestra? (select all that apply) which of the following instrument groups are typically included in a beijing opera orchestra? (select all that apply) percussion, such as timpani, tambourines, and triangles strings, such as the jinghu, yueqin, and lutes strings, such as violins, violas, and cellos percussion, such as gongs, cymbals, and guban