There is a song using just 2 tones a semitone apart in its melody, Šel nádražák na mlíčí ("When a train stationeer went foraging for dandelion greens"), allegedly written by Czech genius Jára Cimrman in the early 1900s.
I don't know for sure, but the Jaws theme is definitely a half-step interval, so the spacing of the keys in the meme is right at least
Random trivia I learned from a music theory YouTuber, the bass line to Rage Against the Machine's Killing in the Name kind of does the same thing, except instead of going back and forth a single half step it does nine thirteen (aka, an eight note octave plus one note half-step)
e; You'd think I'd remember that there are twelve tones in an octave given the name of that music theory channel
Your very slightly incorrect internet comment has ignited me with a passion to correct you. The interval in Killing in the Name is not nine half steps, but rather a minor 9th, which is 13 half steps.
Yeah. Those keys on the piano are E and F. You can see those notes in the sheet music for the title track. Those long rows of notes are a bunch of E's and F's.
If you hit the play button in the bottom left corner, you can hear a computer-generated version of the song. Real version here.