Most people sit down to make a custom song and immediately try to write something beautiful.
They want to summarize the relationship. Capture the essence of who this person is. Find exactly the right words to describe what they mean to you.
That's the wrong instinct entirely.
The AI doesn't need your best writing. It needs your most specific details. Those are different things — and confusing them is exactly what makes some "personalized" songs still feel generic.
Personalized isn't the same as specific
A birthday card is personalized. It has their name on it. It mentions the occasion. You picked it out, sort of.
A custom song that makes someone stop mid-party, look at their phone, and say "wait, how does it know that?" — that comes from specificity so sharp it couldn't have been made for anyone else.
The bar isn't: does this mention them? The bar is: could this have been made for someone else?
What the AI actually needs
You're not writing copy. You're giving the AI raw material — and the more specific the material, the sharper the output.
Three kinds of details that almost always land:
Something they say or do. A phrase they use constantly. A habit that defines them. The thing everyone in your group quietly associates with this person. The AI can work a specific detail into a chorus in a way that makes the room erupt because it's undeniably true.
One real moment. Not "we've had so many great memories together." A specific one. The trip where everything went sideways but somehow that was the best part. The time they showed up without being asked. One concrete scene is worth more than ten summaries.
What you want them to feel. Not what you want to say — what you want them to experience when they press play. Do you want them to laugh? Feel genuinely seen? Get a little weepy in the best way? That vibe shapes everything from the production to how the lyrics land. If you know that, the AI knows where to aim.
The details you'd skip are the ones that stick
Here's the counterintuitive part: the information that seems too small or too weird for a greeting card is often exactly what makes a song feel like it was made by someone who actually knows this person.
Their very specific coffee order. The show they've rewatched way too many times. The nickname only certain people are allowed to use. The joke that requires a full minute of backstory but is apparently the funniest thing anyone in your group has ever said.
You wouldn't write those in a card because they'd look strange out of context. But the AI can weave them into a lyric in a way that makes the listener think that's me before they even reach the chorus.
The specificity isn't noise. It's the signal.
What you don't need
You don't need to be a writer. The AI handles the writing.
You don't need to be eloquent. "She always burns the garlic and then blames the pan" is better raw material than "she's an amazing person who lights up every room." One of those could describe anyone. The other sounds exactly like her.
You don't need to know anything about music. Genre, tempo, production style — you pick a vibe, the AI builds around it.
The only thing you can't fake is knowing the person. That part is yours. Everything else, the AI takes from there.
A quick gut-check before you submit
Read your description back to yourself. If it could describe someone else you know, add one more specific detail. When it could only describe this person — that's the version to submit.
You'll know when you're there. The details will feel almost too inside, too specific for anything but a song. That's exactly the feeling you're looking for.
If you've got it, you're ready. Making their song takes about 60 seconds from here — and what comes out is something that actually fits.