A gig should be.......

The other day, I went to a gig of my friends' band. I"ll list up what I thougt when I watched the gig. ①A Vocal should sing facing forward. ②Guitarists shouldn't use too many effecters(divices which change the sound ) . ③It'd better if the guitar sound is straight and simple. ④Players should have confidence. ⑤Players should be either cool or strange.The halfway is not good. ⑥The atmsphere the band makes is very important. ⑦The most important thing is that doing thoroughly. Anything is OK.