A band is seen playing a variety of musical instruments.
A band sits on the stage not doing anything, and the crowd is wondering what the heck is going on.
Playing a variety of instruments can't happen when doing nothing.
exists e1 p1 x1.(exists e2 s1 x2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & of(x2,x3) & n_instrument(x3) & a_musical(s1) & Theme(s1,x3) & n_variety(x2)) & Recipient(e1,p1) & Topic(e1,x1) & v_see(e1) & n_band(x1))
exists x1 x2 x3 x6.(n_heck(x6) & n_crowd(x2) & n_stage(x3) & exists e4 e3 x5.(n_thing(x5) & Theme(e4,x5) & Actor(e4,x2) & v_wonder(e4) & on(e3,x5) & Actor(e3,x6) & v_go(e3)) & -exists e1.(all x4.(n_thing(x4) -> exists e2.(for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_do(e2))) & on(e1,x3) & Actor(e1,x1) & v_sit(e1)) & n_band(x1))