Good requests Manocool. I'm on board with you, and I've tried to organize some of the Jukebox suggestions to achieve greater effect together.
Most of your suggestion is covered in another Suggestion post, "Jukebox Layout, Multiple Playlists". That suggestion would benefit from adding your comment and your +1 vote on that thread,
https://app.roll20.net/forum/post/1241905/jukebox-...Additionally -- Your final suggestion of "the ability to play certain songs for certain players" is a separate idea, and there is already another Suggestion thread for that too. That idea could fit into any of these 3 threads, take your pick and simply write-in your variation of the idea on the Comments there:
Music / Sound effect Queued by map change or shown handout (Score +73 so far)
https://app.roll20.net/forum/post/1240051/music-sl...Sound trigger API (Score +14 so far)
https://app.roll20.net/forum/post/1241733/sound-tr...Play selected sound file on movement or other trigger (+1 so far)
https://app.roll20.net/forum/post/1401157/play-sel...
