Music Soulmate

Enter three to ten artists on your side, then either hand the device to a friend or copy the invite link — it encodes only your artist IDs, nothing else. When both sides are in, the music soulmate engine computes one compatibility score from three transparent parts: genre similarity (how closely your two genre distributions point the same way), mood similarity (how near your energy, warmth, melancholy and intensity land) and artist overlap (how many names you share outright).

The weights are sixty-five, twenty-five and ten — genre first, because it predicts the shared playlist; mood second, because it predicts the shared evening; artists last, because discovering new music together is the whole fun of a music soulmate anyway.

The music soulmate flow never asks for accounts, emails or streaming access. Your invite link contains a compact encoding of your chosen artist IDs — names you already post publicly — and expires never but reveals nothing else. Your friend's side never leaves their browser either; the comparison runs locally on whoever's device opens the link.

This design keeps the music soulmate test friction-free and gossip-safe: forward the link in any chat app without shipping personal data along with it.

A high music soulmate score means your libraries rhyme — great for road trips and queue peace treaties. A lower score means contrast: more discoveries, more auxiliary-cable diplomacy. Neither outcome is a verdict on the friendship; the music soulmate scale measures playlists, not people.

Symmetry is guaranteed: swap the two sides and the number holds, because genre cosine similarity has no ego. The music soulmate engine treats both libraries with exactly equal respect, which is more than most group chats can say.

The share card shows both profiles' top artists around one big number — the music soulmate post that starts arguments in the best way. Whoever opens the replay link sees the identical result recomputed locally, with a try-yours call to action.

The practical next step is the fun part: build the joint playlist from your shared families, then alternate one artist each from your complementary lists. That is the whole music soulmate method for turning a score into a soundtrack.

The full formula is public: compatibility equals sixty-five percent genre similarity, twenty-five percent mood similarity and ten percent artist overlap, each computed from the two deterministic profiles. Genre similarity compares your family distributions as vectors — pointing the same way scores high, orthogonal libraries score middle, opposite libraries keep the spice. Mood similarity measures the distance between your four mood axes. Artist overlap is a straightforward Jaccard share of your two name lists.

Why these weights? Because a music soulmate is first someone you can build one playlist with — that is genre. Second, someone whose evenings sound like yours — that is mood. Shared artists matter least because trading favorites is the best part; a ten-percent weight keeps the discovery lane wide open.

Every component is symmetric and explainable: swap the two sides and nothing changes, and the result card shows all three parts with their own numbers. A music soulmate score you cannot audit would be astrology — this one is arithmetic.