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.
Ah you are totally right and thank you for the correction, I got taught at a young age by a very nice but very overworked public school music teacher that there were just eight notes and not to worry about anything more complicated than that and my brain always really wants to default back to that
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.