"An astonishing amount of today’s popular music is written by two people: Lukasz Gottwald of the United States and Max Martin from Sweden, who are both responsible for dozens of songs in the top 100 charts. You can credit Max and Dr. Luke for most the hits of these stars:
"Katy Perry, Britney Spears, Kelly Clarkson, Taylor Swift, Jessie J., KE$HA, Miley Cyrus, Avril Lavigne, Maroon 5, Taio Cruz, Ellie Goulding, NSYNC, Backstreet Boys, Ariana Grande, Justin Timberlake, Nick Minaj, Celine Dion, Bon Jovi, Usher, Adam Lambert, Justin Bieber, Domino, Pink, Pitbull, One Direction, Flo Rida, Paris Hilton, The Veronicas, R. Kelly, Zebrahead
"With only two people writing much of what we hear, is it any wonder music sounds the same, using the same hooks, riffs and electric drum effects?"
Part of an article worth reading (if you haven't already) by Jon Henschen at https://www.intellectualtakeout.org/article/tragic-decline-music-literacy-and-quality
Particularly interesting is the reduction in timbral variety (nature and type of sounds and instruments) and harmonic variation and structure since the 1960s peak. I'm sure that's why I find the amazing variety on board 5090 and FAWM a delight, even if my listening hasn't been up to scratch this year! But don't expect ever to get anywhere beyond coffee money in your songwriting--more than that's a bonus, like reaching 70 years and still being alive....!