The man is talking into the microphone while playing the guitar.
The guitarist has a microphone in front of him.
Microphone work is to talk through.
exists e2 e1 x1 x2 x3.(n_guitar(x3) & n_microphone(x2) & n_man(x1) & while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_play(e2) & into(e1,x2) & Actor(e1,x1) & v_talk(e1))
exists e1 x1 x2 x3.(n_male(x1) & n_guitarist(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & in(x2,x3) & of(x3,x1) & n_front(x3) & n_microphone(x2))