Your Last.fm metadata degrades on its own, and it distorts your charts.
Read-only, no login Saved on this device clear Shared API key, rate limited use your own
Get one free in two minutes at last.fm/api/account/create. Paste the API key, not the shared secret. It is used for this scan only: never stored, never logged, and gone when you close the tab. Only the key field is needed.