Without contracts it's pretty easy to cancel one service and start with another. That said, swapping between music services isn't as straightforward as swapping between movie locker services using Movies Anywhere for example. If you don't want to have to rebuild your playlists and library from scratch when you switch, you have two main options -- a music locker service such as YouTube Music (but this implies you have a library of ripped or bought MP3s), or a library import tool such as Soundiiz. The latter is a service that lets you import the songs from each of your music services and transfer them, and while there's a $4.50 monthly charge, you can always cancel once you've converted your library. Recently, Deezer has offered the ability for new users to convert their libraries from other services for free (via another service called Tune My Music).