Thank you, it works!

It gets the song artist and title right most of the time, and makes it easy for me to correct the data before it scrobbles.

Only complaint: doesn't work in Chrome. Support for Chrome added!

Very good detection if it's standard video or a music track.

It would get 5 stars if you could get it to work on Tubufy.com-playlists since those are played from Youtube as well, have a look at this example: http://tubufy.com/spotify:user:alainn:playlist:...#

Thank you, you overwhelmed the impossible.