Two men in a band play guitar and sing on stage.
Two men are in a death metal band performing for 10 people.
There is no implication that the band plays any particular sort of music, such as death metal. Just because they play on a stage does not necessarily mean they are performing.
exists e2 e1 x1 x2 x3 x4 x5 x6 x7 x8.(r_.(e2) & on(e2,x8) & n_stage(x8) & Theme(e2,x7) & Actor(e2,x6) & v_event(e2) & n_sing(x7) & n_thing(x6) & in(e1,x3) & Time(x3,x5) & n_guitar(x5) & n_play(x3) & of(x3,x4) & n_band(x4) & Theme(e1,x2) & Actor(e1,x1) & v_event(e1) & n_man(x2) & card_eq_2(x2) & n_thing(x1))
exists p1 x1.(exists e1 x2 x3 x4 x5 x6.(in(x1,x2) & for(e1,x6) & n_people(x6) & n_date(x6) & a_date_day_10(x6) & a_date_day_10(x6) & Actor(e1,x5) & v_perform(e1) & (x2 = x5) & n_band(x2) & of(x2,x4) & n_metal(x4) & of(x2,x3) & n_death(x3)) & n_man(x1) & card_eq_2(x1))