관심도 없고

not interested at all, and

→ 관심
phrase Uncommon #14,672
not interested at all, and 도 emphasizes that there is no interest at all; 고 connects this phrase to what follows.
KO: 그는 음악에 관심도 없고 영화도 안 봐요.
EN: He’s not interested in music at all, and he doesn’t watch movies either.