I'm fine if the rest of the song title is replaced with ellipsis (...) if it is too long. Whatever is displayed should be enough to identify the song. Splitting into 2 lines may upset the information on the next line.

It will be more useful if the song queue can also be displayed like 3/10 ( 3rd song of 10) when playing albums. This avoid having to return to music player to check how many songs are left to play.