I saw several articles about the loss of MySpace music files recently lost that were partially recovered and added to the Wayback Machine, including https://www.theverge.com/2019/4/4/18295014/myspace-lost-songs-dragon-project-tracks-web-archive-internet-archive-450000-recovery
The Internet Archive has published a catalogue of 490,000 MySpace songs uploaded to the service between 2008 and 2010 that were previously thought lost as a result of a botched server migration. These songs are less than one percent of the estimated 50 million tracks uploaded between 2003 and 2015 that the once dominant social network accidentally deleted.
It’s worth noting that the 490,000 saved files are less than 1% of the 50 million music files deleted by MySpace. I kept my old MySpace account because I liked the amount of music files that were available on it compared to what I could get on Facebook.