^^^I think I’m hearing “intentaré conseguir (?) ese sueňo que siempre he tenido”. I can’t really hear the one word he is saying, but I get the sense that Javi would like to reach the dream he has always had. I am assuming that he would like to reach his dream of winning an Olympic medal. He doesn’t mention any specific music. He mentions that the Man of La Mancha is a well-known Spanish character, which is what I think he said before when he hinted at his music.
In the first part, they talk about the different things he does for his off-ice training to help the explosiveness of his skating. I like where they say the only skate in sight is the one that is tattooed on his leg, along with the Olympic rings.
ETA -- I like that Javi seems really enthused about this choice.