Beethoven’s Symphony No. 5 (First Movement)

Arguably the most famous four notes in music history, Beethoven’s Symphony No. 5 starts with a punch: “da-da-da-DUM!” Even if you think you don’t know classical music, you’ve probably hummed this dramatic opening without realizing it. The motif has popped up everywhere from old cartoons to epic movie trailers, and even in phone ringtones. According to the BBC, this piece is recognized by over 90% of adults in Europe and North America. During World War II, those first four notes were used as a “V for Victory” signal, thanks to their Morse code resemblance. It’s hard to overstate the impact—Beethoven’s Fifth is a musical shorthand for urgency and drama. The piece was first performed in 1808 and is still a staple in concert halls today. Its legacy continues to inspire new generations, proving the timeless power of those opening notes.
Edvard Grieg’s “In the Hall of the Mountain King”

Mischievous and a little bit spooky, “In the Hall of the Mountain King” by Edvard Grieg is the soundtrack of sneaky plots and wild chases. If you’ve watched TV or movies, you’ve probably heard this piece during a scene where someone is creeping around or chaos is about to erupt. It was written in 1875 for the play Peer Gynt and has since appeared in everything from The Social Network’s trailer to Looney Tunes. The melody starts slow and quiet, then builds into a wild, frenzied finish—perfect for any scene that needs a sense of escalating mischief. According to a 2023 poll by Classic FM, it’s one of the top five most-played classical pieces in the world. Its popularity is boosted by its use in commercials and sports stadiums to pump up the energy.
Johann Pachelbel’s “Canon in D”

There’s a good chance you’ve heard Pachelbel’s “Canon in D” at a wedding—maybe even your own. This gentle, flowing piece has become the unofficial soundtrack for walking down the aisle. But it’s also crept into pop songs and background music for everything from YouTube tutorials to TV commercials. Written back in the late 1600s, it didn’t become widely popular until the 1970s, when a recording by Jean-François Paillard helped it explode in popularity. According to a 2022 Spotify report, “Canon in D” is the most-streamed baroque piece worldwide. The structure repeats the same chord progression, which is why it sounds so instantly familiar—even if you can’t put a name to it.
Mozart’s “Eine kleine Nachtmusik” (First Movement)

You know this one: it’s the musical shorthand for “fancy party” or “classic elegance.” Mozart’s “Eine kleine Nachtmusik” is featured in countless movies, commercials, and even cartoons to set a sophisticated mood. First performed in 1787, it’s one of Mozart’s most beloved and accessible works. Its opening melody is instantly recognizable, with its light, bouncy feel and crisp strings. A 2024 survey by The Guardian found that this piece was in the top three most requested classical tracks on streaming platforms in the UK. Many people can hum the tune but don’t know what it’s called or who wrote it. The piece’s charm lies in its simplicity and the joyful spirit it brings to any setting.
Rossini’s “William Tell Overture” (Finale)

You might not know the name, but you’ve definitely heard the galloping rhythm of Rossini’s “William Tell Overture.” It’s the musical cue for racing horses, wild west chases, and, of course, the Lone Ranger. The overture was composed in 1829 and has been used in everything from Bugs Bunny cartoons to Olympic broadcasts. The finale’s fast-paced tempo makes it perfect for scenes that need a burst of energy and excitement. According to NPR, the overture’s finale is among the top ten most-used classical themes in American pop culture. Its association with speed and action is so strong that it’s almost impossible to hear it without picturing something—or someone—moving at lightning speed.
Johann Strauss II’s “The Blue Danube”

Waltzing into the hearts of millions, “The Blue Danube” by Johann Strauss II is the soundtrack of ballroom scenes and New Year’s celebrations. First performed in 1867, it’s considered the unofficial anthem of Vienna and is played annually at the Vienna Philharmonic’s New Year’s Concert, watched by over 50 million people worldwide. The melody is smooth, graceful, and instantly recognizable, conjuring images of elegant dancers spinning under crystal chandeliers. It’s also been used in Stanley Kubrick’s film “2001: A Space Odyssey,” where it accompanied scenes of floating spacecraft. According to a 2024 report from Classic FM, “The Blue Danube” remains one of the most broadcast classical pieces globally.
Antonio Vivaldi’s “Spring” from The Four Seasons

When birds chirp and flowers bloom, Vivaldi’s “Spring” is never far behind. This cheerful violin piece is everywhere: in commercials for allergy medicine, nature documentaries, and even ringtones. Composed in 1723, “Spring” is the most popular of Vivaldi’s Four Seasons, according to a 2023 survey by the Royal Philharmonic Orchestra. The lively, optimistic melody paints a musical picture of the season, and its use in media has made it a go-to symbol for new beginnings. Many people recognize the tune instantly but have no idea it’s Vivaldi. The piece’s enduring popularity shows how classical music can capture the feeling of a season better than words ever could.
George Bizet’s “Carmen: Habanera”

Seductive and sassy, the “Habanera” from Bizet’s opera Carmen is the sound of drama and intrigue. This melody often pops up in movies and TV shows whenever a character wants to make a dramatic entrance or when romance is in the air. Written in 1875, the aria’s sultry rhythm and catchy chorus—“L’amour est un oiseau rebelle”—have become iconic. According to Opera America, “Habanera” is one of the top three most-performed arias in the world. Its flirtatious melody is instantly recognizable, even to people who have never seen an opera. The piece’s global appeal is a testament to its unforgettable charm and the universal power of music to convey emotion.
Ludwig van Beethoven’s “Für Elise”

If you’ve ever taken piano lessons or heard someone noodling on a keyboard, chances are it was “Für Elise.” This simple, playful melody is one of the most learned piano pieces worldwide, according to a 2024 report from the Associated Board of the Royal Schools of Music. Beethoven composed it in 1810, but it wasn’t published until decades after his death. The piece is often used in films, TV, and even in doorbell chimes—its catchy opening makes it a musical earworm. Despite its popularity, many people don’t know its name or that Beethoven wrote it. Its mix of sweetness and melancholy gives it a universal appeal that has endured for over 200 years.
Pietro Mascagni’s “Cavalleria Rusticana: Intermezzo”

Heartbreak and nostalgia seem to pour out of Mascagni’s “Intermezzo.” Often used in movies to underscore poignant or bittersweet moments, this lush orchestral piece is a masterclass in emotional storytelling. The opera Cavalleria Rusticana premiered in 1890, and the “Intermezzo” quickly became its most famous section. In Martin Scorsese’s film “Raging Bull,” the piece was used to highlight moments of reflection and regret, a testament to its emotional power. According to a 2023 study by the British Film Institute, “Intermezzo” is one of the top ten most-used classical tracks in film soundtracks. Its soaring strings and gentle melody make it unforgettable, even if its name escapes most listeners.
Richard Strauss’s “Also sprach Zarathustra” (Opening)

A single, earth-shaking note followed by a swelling brass fanfare—this is the sound of something epic about to happen. Richard Strauss’s “Also sprach Zarathustra” is synonymous with grand beginnings, thanks to its use in “2001: A Space Odyssey.” First performed in 1896, this opening theme has become a staple for introducing anything awe-inspiring, from sports events to tech launches. According to Billboard in 2023, the theme has been streamed over 50 million times in the last year alone. Its powerful, almost cosmic sound continues to thrill audiences, making it one of the most recognized pieces in the world—even if the name remains a mystery to many.