Spotify Audio Output to Bluetooth Device

Hello there,

I am working with a PI Zero W and volumio. I would like to playback my spotify music to my bluetooth speakers. Can you please give some hints on how could I redirect my Audio Jacks or HDMI audio to my bluetooth device?

So far I can just play separate audio files in my bluetooth speakers using the promt like

aplay -D bluealsa:HCI=hci0,DEV=12:34:56:78:12:90,PROFILE=a2dp /usr/share/sounds/alsa/Noise.wav

However I have no idea how to redirect the sound from spotify to my bluetooth device

Thanks in advance for your help