So basically, there cood b like, a radio to put in your guild..
The 1st thing it'd ask you when u click the toggle button on it, wood be: Do you want SK music or music from youtube?
Then, if u clicked SK music, it'd give you all the SK music (E.G GH music, Training Hall music, mission music...) then select the music you want
But if you selected youtube music, u'd Copy and paste a link from utube into the radio and it'd play that 4 u.
Also, maybe you cood have a playlist of songs, perhaps even a mix of SK and utube music.
I think this has already been suggested as a jux box to play a litst of musics we could find in the clockworks to make it a hunt. The youtube idea part is new, though i don;t think sk will take anything external into the game besides posting a link directly to sk wiki from the in game help menu options. So overall, it;s a good idea, but has kind of been already suggested.