This will find all the files with the extensions of .mp3 and .png, (as I don't have any music files other than .mp3 and I don't have any video files, so I used these extensions to test it works), just extend it as below to include whatever file types you want.
the . after find will make it search in the current working directory, otherwise remove it for a wider search outside the current directory.
Code:
find . -type f \( -name "*.mp3" -o -name "*.png" \)the . after find will make it search in the current working directory, otherwise remove it for a wider search outside the current directory.