Install Download YouTube Music
After download finished, please double click dymsetup.dmg you have downloaded. The disk image will be decompressed and opened automatically, just drag the application icon to your Applications folder to install. After install finished, you can eject and delete the setup package if you want.
Run Download YouTube Music
Please open the Download YouTube Music by clicking the icon from Applications.
How to uninstall
Just put the Download YouTube Music to the Trash to delete it directly.