Cant play music in backround (Spotify)

I generally like the changes Youve made (except the timer interface, which imo was better in old version, because I could go back to last exercise and now its impossible to move the list backward), but please return the capability of playing music from different applications in background, like in the previous version. I cant listen to my playlist on Spotify while working out, cause the timer stops when I play music and vice versa.

Aramir654 about Seconds Pro Interval Timer, v3.0