select
music_name
from (
 select distinct music_id from music_likes
 where user_id in (select follower_id from follow where user_id = 1)
 and music_id not in (select music_id from music_likes where user_id = 1)
) a
join music m on a.music_id = m.id
order by id

distinct 不能和 order by连用