C64 Recognize common patterns between disk images

I have 2 disk images from the C64 for example:

• disk1 it's a game and it starts with some splash-screen and the music.
• diks2 it's a demo and contains many songs and the same music as the first disk.

Is it any chance that examining the 2 images with some Hex editor I can see the same pattern binary sequence at some point in the 2 files? Will be they stored in the same way? And if yes what would be the right approach to match the pattern?

(the goal is to search for that song in 150k+ program files and see in what disk it is used)