`  Incidentally, in the “most successful group” record for the Beatles, the 1983 edition of the Guinness book further adds:  ``All four ex-Beatles sold several million further records as solo artists. Since the break-up of the Beatles in 1970, it is estimated that the most successful group in the world in terms of record sales is the Swedish foursome ABBA.``  And, regarding McCartney as the ``most successful song writer`` it adds:  ``He was the recipient in Oct 1979 in London of the first Guinness Award as the most honored composer and performer in music.``  That, along with news reports of the event, such as ``Tops In Composing`` that quote ``most honored composer and performer in music`` is why I want to use that particular wording.   `