I\'d like to have the ability to create a smart playlist of say the 50 most played tracks I have by any artist.

Why does the two default playlist \"most played\" and \"favorite tracks\" exist? Shouldn\'t these be more or less the same?

As far as I can tell, Favorite Tracks are the ones that have highest scores

So just create a smart playlist of an artist with the \"Order by\" set to Play Count. And the \"Limit to\" to 50.