howdi, did not know this .
i found this for a friend ( name redacted ) who is a beetles fan but not to the point of following their lives closely.
Lennon was murdered in 1980, and Harrison died of lung cancer in 2001. McCartney and Starr remain musically active. The Beatles are the best-selling music act of all time, with estimated sales of 600 million units worldwide.
= new reply since forum marked as read
they were so prolific as songwriters, (229 Songs and still more as solo artists...)
that they decimated the available, potential tunes/melodies for every other songwriter!
See there's these 12 notes and not every combination of those notes is going to be pleasant to listen to!
It's a finite number. 
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