How to Write a Song Inspired by Another Song — Without Copying It

Being inspired is legal. The trick is knowing where inspiration ends and copying begins.

Every songwriter has felt it: you hear a track, something about it grabs you, and you want to make something that feels like that. Then the doubt kicks in — is that even allowed? Am I about to accidentally rip someone off?

Good news: being inspired by a song is not only legal, it's how music has always worked. The trick is knowing where inspiration ends and copying begins.

What actually gets you in trouble

Copyright doesn't protect a feeling or a vibe. It protects specific expression — mainly a recognizable melody and, to a lesser extent, distinctive lyrics. What it does not protect:

Chord progressions. The I–V–vi–IV progression is in hundreds of hit songs. You cannot own a chord progression.
Rhythmic feel and groove. A "four-on-the-floor" beat or a reggae skank is fair game.
Key, tempo, and genre. Nobody owns "a sad piano ballad in A minor."
General mood or energy — the "spirit" of a song.

So the danger zone is narrow: don't lift the actual tune. Everything around it — the harmonic bed, the groove, the atmosphere — is where inspiration lives freely.

The mindset shift: borrow the DNA, not the notes

Instead of trying to recreate the song, break it into ingredients:

Melodic contour — does the melody rise and fall in a way you love? You can echo the shape (up-up-down) without copying the exact notes.
Harmonic feel — what's the emotional color of the chords? Recreate the function (tension → release) with your own voicings.
Rhythm — the pocket, the swing, the syncopation.
Tension arc — how it builds and resolves over time.

Take the ingredients you love, change the actual notes, and you've made something new that still feels connected to the original.

A safer shortcut: build from public-domain music

Here's a technique pros quietly use: instead of borrowing from a copyrighted song, borrow from the enormous library of public-domain music — classical, folk, and old jazz where the copyright has expired. Bach, Beethoven, traditional folk tunes: all free to build on, reinterpret, and modernize.

You keep the spirit you're chasing, and your raw material is music whose copyright has expired. That's the difference between "influenced by" and "copied from."

A quick way to do all of this

If you'd rather not analyze chord functions and hunt public-domain catalogs by hand, this is exactly what I built Songneer to do. You give it a song you love; it breaks down the melody, harmony, rhythm, and tension; finds public-domain pieces that share the same spirit; and helps you build a new composition from those public-domain building blocks — then export the MIDI to GarageBand, Logic, or any DAW.

It runs entirely on your iPhone, and it's free to try. It won't make a note-for-note clone (and honestly, you don't want one) — it helps you make something that reflects the song you loved while being your own.

Whatever tool you use, the principle holds: borrow the spirit, write your own notes. That's how great music gets made.