Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One great song

Once in a great while I hear a perfect song -- sung and played so well that improvement is impossible. "Total Eclipse of the Heart" by Bonnie Tyler and "Suspicous Minds" by Elvis Presley come to mind. (For those who dissent, please be tolerant. I never made any claim to have good musical taste!)"Eres Tu" ("It is you") is such a song. The slightly stressed and hoarse vocal by the female lead, the lush choral background, the guitar strumming are perfect. Even the phrasing is great. I love the lisped -- "esperantha" for "esperanza" -- a Spanish affectation that I usually find cloying. And the rolled "r" of "guitarra" is downright thrilling -- or is that trilling?Well, ok, one great -- perfect -- song, and a bunch of fair to good songs make for a four star rating. Despite being in Spanish, "Eres Tu" was a hit in the U.S. in the 1970s or thereabouts. The other songs are unknown, at least to me.