WhohearsFree Last.fm tool
Last.fm Compatibility Checker
Two usernames in, a level from Low to Super and the artists they share out. Rare artists count for more than The Beatles.
How compatibility is computed
80% rarity-weighted artist overlap, 20% track overlap, over both public top-1,000 lists. On 685 real pairs it lands within one rung of Last.fm's own verdict 73.8% of the time.
Last.fm compatibility levels
| Level | Overlap score |
|---|---|
| Super | 60% and up |
| Very High | 40 – 59% |
| High | 25 – 39% |
| Medium | 10 – 24% |
| Low | 1 – 9% |
| None | 0% |
Then hear what your friends are hearing
Whohears finds the tracks the people you follow on Last.fm play that you've never heard, and you collect them by listening.
Find themFree. No sign-up, just your public username.
Compatibility questions
80% rarity-weighted shared artists, 20% shared tracks, from both users' public top artists and tracks.
Super 60%+, Very High 40–59%, High 25–39%, Medium 10–24%, Low 1–9% — Last.fm's own ladder.
Last.fm sees play counts; we only see which artists are present. On 685 real pairs it lands within one rung 73.8% of the time.