According to Quote Investigator, the basic concept expressed had been around since 1849, but the specific order and wording was first found in query sent to the New York Times in 1931:
“Great and Small Minds”
H. A. M.—Wanted, the correct quotation and
origin of this expression: “Great minds discuss
ideas, average minds discuss events,
The 1974 source is not saying it is a quote. Instead, the 1974 source says:
It took Lenin little time to realize that music played a vital part in the cohesion of society. He also realized that one sure way to destroy an enemy society was to destroy that society's music. This is exactly what his disciples have set out to do. In his How Music Expresses ...