Respuesta:
1. (-) Adam Jones don't watch the ice music concert on the TV.
(+) Adam Jones watch the ice music concert on the TV.
2.(-) The musicians don't play conventional instruments.
(+) The musicians play conventional instruments.
3.(-) They don't play only classical music.
(+) They play only classical music.
4.(-) Linhart isn't first instrument worked well.
(+) Linhart is the first instrument that it worked well.