In the 1960s, an average hit song on the Billboard Top 10 had an average of 1.87 writers and 1.68 publishers each year. Songwriting duos were common, and creativity a simpler endeavor…
During the LP era (60s-80s), the number of songwriters and publishers on hit songs didn’t rise as dramatically. Based on the Songdex analysis, in the 70s, hit songs on the Billboard Top 10 had an average of 1.95 writers and 2.04 publishers each. During the 80s, the number of average publishers in top 10 songs slightly rose to 2.06. The number of writers remained the same.
In the 90s, the number spiked to an average of 3.13 writers and 3.49 publishers per top 10 song. Incidentally, the change coincides with the rise of digital music formats, such as the MP3. Napster also launched in 1999. All of which ushered in an era of massive data overload (and that’s before streaming took hold).
Consumers quickly adopted digital music formats, resulting in a “market need for registration, licensing and reporting systems,” says Music Reports. In the 2000s, Billboard Top 10 hits had an average of 3.50 writers and 4.96 publishers each year.
This past decade, streaming has emerged as a major source of revenue for record labels. Using its Songdex catalog registry, Music Reports noted that Billboard Top 10 hits saw an average of 4.07 writers and six publishers.
Here is the full story, I am glad Beethoven never did much co-authoring, with apologies to Diabelli.