Tarantino in 2019 "Borrowed" A Music Cue from This Movie for "Once Upon a Time in Hollywood"

There was a middling movie release in 2018 called "Bad Times at the El Royale" -- an allegorical thriller set at a hotel on the California/Nevada border at Lake Tahoe(a resort lake that sits in both states.)

I was watching "El Royale" this week (I saw it in 2018 as well) and noticed something about 2/3 in.

In "Bad Times at the El Royale," eventually a "Charles Manson stand in"(played by Chris Hemworth) arrives at the hotel to take away an escaped girl from his murderous cult; he has some other "family members" with him to hold the rest of the cast hostage.

The music cue for Manson/Hemsworth's arrival at the El Royale...played for quite a long time , is: "Young Girls Are Coming to the Canyon," a late 60s song by the Mamas and Papas, I believe about the young girls who came to the canyons of Los Angeles (like Laurel Canyon) along with the hippies and musicians who hung out there. Among those young girls: the Manson girls.

So here's this cue in "Bad Times at the El Royale" and -- QT uses the same song as the cue for the REAL Manson family killers advancing on Sharon Tate's house(but choosing another house in this fictional re-telling). These young girls are coming to the canyon...to kill people.

Its funny: some critics found "El Royale" to be a sub-par Tarantino knock-off, what with its chapter title cards ("Room Four") and its over-articulate characters and its musical riffs...

...but here was QT using one of the musical cues FROM "El Royale" for HIS Manson family movie.

A borrowing? An "homage"? (Maybe QT liked "El Royale" and its writer-director), a THEFT?

We will never know, I guess.