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Rachmaninov lived about 70 years, which is approximately 2.2 billion seconds. The quoted number of notes was 7.5 billion billion. So the composer would have needed to have written more than 3 billion notes for every second of his life.
Can this be true? No it can’t!
See
https://learn1.open.ac.uk/mod/oublog/viewpost.php?post=261570Rachmaninov lived about 70 years, which is approximately 2.2 billion seconds. The quoted number of notes was 7.5 billion billion. So the composer would have needed to have written more than 3 billion notes for every second of his life.