"More or less a blatant rip-off"-type cues

[tim gueguen]

Here's a potential library ripoff track.  Heard in this 1990 ad for Dentyne gum that aired in Canada it's an obvious lift of  "Private Investigations" by Dire Straits from their 1982 album Love Over Gold.  Relevant section of the Dire Straits track after the 3:55 mark.

[Veraneio]

I recently have heard a track from the Chappell Recorded Music Library that sounds like Sergio Mendes' "Olympia", one of the L.A. 1984 Summer Olympics theme

"Challenger" by Wolfgang Kafer (09:21)

"Olympia" by Sergio Mendes

[feslmogh]

I don't know about you but these two sounds similar... coincidence?

"Long Weekend"-Stephen Gray

"Me & my Chair"-Music by   David Archibald
                         Lyrics by   Luis Santeiro
                         Date   1982
                         Publisher   Sesame Street Inc.
                         First   Episode 1706
                         (Muppet Wiki)

[Eternas Ondas Musicales]

Jason Black - From Vegas

Zuni - Fucsia

[Derker]

All right, who doesn't like classic prog-rock pieces like this one of King Crimson?
_{King Crimson - Epitaph}

and below - the library equivalent 
_{Joachim Sherylee - Iceberg}

[Derker]

Another classic song y'all might love and was imitated many times in library genre is the one from Frankie Goes To Hollywood.
_{Frankie Goes To Hollywood - Welcome To The Pleasuredome (Instrumental)}

and below two rip-offs, where the second one is, in my opinion, less blatant and sounds much better than the first one
_{Brian and Warren Bennett - Xenon Lights (at 02:45)}

_{Nigel Bates - Cut & Thrust (at 07:47)}

[Saulaac]

Dave Richmond - "Police Car"

KC & The Sunshine Band - That's The Way (I Like It)

[DaveNightingale]

_{Brian and Warren Bennett - Xenon Lights (at 02:45)}

Brian and Warren's effort owes a bit more to the cover FGTH did of Edwin Starr's War on WTTP

[Keoma]

Michael Fix - Off To Work (The Soundtrax Music Library SML 1014)

Men at Work - Down Under

[tim gueguen]

It's a bit ironic that someone would do a lift of Men at Work's "Down Under," because it ended up being part of a copyright dispute.  The song's prominent flute part referenced the well known Australian song "Kookabura."  Unfortunately for the band the writer of the song, Marion Sinclair, died in 1988, so the song is still under copyright.  The owners of the rights eventually sued Men at Work, and received a large financial settlement as a result. 

[Two-Sheds]

Not the entire piece, but Olive Turner's "Commemoration" (DW/LP 2988) sneaks in the melody of "Somewhere Over the Rainbow" at 0:17 and 2:54:

https://www.dewolfemusic.com/search.php?id=30803895&code=uUaAUZ