To expand on this - here we have a track ONLY available through ONE store - TESCO - both physically and as a download (check the link)...
www.katiemelua.com/tesco/christmas/
Now surely this is a HUGE result.
Radio and TV must play and will play the No1 track.
Suddenly all other retailers are out in the cold.
And doesn't this dent - at last - the iTunes virtual monopoly?
I think this illustrates a major sea change in our industry (and is yet another massive blow to the majors).
How can distributors, big overhead companies, music specialists compete?