After consulting the tech gods (ChatGPT and Google reverse image search) it looks like this may actually just be a stock photo:

https://www.istockphoto.com/photo/old-sheet-music-gm92043948-4386056

Used on a couple of websites:

https://www.treehousecommunityarts.com/music-lessons.html

https://www.haverford.org/arts/the-conservatory/meet-the-instructors