You don't "buy" music. You buy a license to listen to that music for as long as the license issuer still owns that particular song.
Unless dealing with the artist or studio directly the license issuer also won't "own" the song but rather have a license to sell and distribute the title.
You can click on the tomatometer and get the average score from the critics they index.
The "Top Critics" are averaging 7/10 for DnD:HAT