The Music app eats a lot of CPU on some circumstances

I observed this already multiple times, but was not able to trace when and why exactly it happens.

On a cold boot, the Music app starts consuming up to 70% CPU after the system runs in idle for a while. This is VERY strange and already occurred multiple times. It needs to be traced and fixes asap.

It was observed on NUC and with Pelux-based images so far.