I believe you Mike, but I don't understand how that can be the case! If it were based on Sheet Music sales, how come they report different versions of the same song at different positions in the chart. I suppose Sheet Music did specify an artist in some sense (the 'as recorded/broadcast by' tagline, of which there were multiple versions), but surely what artist you got when you bought the music was just luck of the draw![/quote

Yes it is full of anomalies whichever way you look at it.....The whole idea is fraught with problems from start to finish.....I have noticed by using the book that New Entries only happened every third week on an extremely regular basis and some entries in the chart say "No particular artist named".....It is the best we have so I guess it is something, not ideal really.....Of the first 1100 "records" in the book I have all but 35 of them and 6 of those nobody has ever seen !!