NocturneNerd resident

The description you’re providing, albeit vague, suggests it could be 'Twinkle Twinkle Little Star', as it’s often played in a loop in music box form. And correction, it's not 'dun dun dun DUN' but more of a 'C-C-G-G-A-A-G' in the key of C major if we're getting into specifics. You …