Decline of key changes in popular music

<img width=“750” height=“389” src=“https://flowingdata.com/wp-content/uploads/2022/11/key-change-750x389.png" class=“attachment-medium size-medium wp-post-image” alt=“” srcset=“https://flowingdata.com/wp-content/uploads/2022/11/key-change-750x389.png 750w, https://flowingdata.com/wp-content/uploads/2022/11/key-change-1090x565.png 1090w, https://flowingdata.com/wp-content/uploads/2022/11/key-change-210x109.png 210w, https://flowingdata.com/wp-content/uploads/2022/11/key-change-768x398.png 768w, …