*whispers* Concept: more musical alt-mode Cybertronians. An old gramps phonograph (an old friend of Rung's probably) with record minis. A little music box Cybertronian who sings lullabies. A jukebox Cybertronian who plays at cafes. Launchpad Cybertronians with ticklish buttons that light up when they're playing.
This is an Excellent Concept! Omfg!!! :D :D :D I love it!