I want to find the music from Episode 53 (Yorknew City arc) starting at 6:51
It's an Asian-style song with what sounds like a Japanese musical instrument called a shamisen.
Anime & Manga Stack Exchange is a question and answer site for anime and manga fans. It only takes a minute to sign up.Sign up to join this community
I was not able to find that particular piece of music in any of the OST volumes. The song in question seems to last less than a minute so they might have decided to not name/list it. Here are two different lists of all of the music in HxH feel free to browse them I could have missed it.
Hunter x Hunter Wikia - Music **this link also contains music information about the 1999 airing of HxH