Yes, if you no longer want to use your Spotify account on your Beosound Core, you can disconnect your account using your Bang & Olufsen app by following the steps below:
1. Open the Bang & Olufsen app.
2. Tap Beosound Core on the home page to open the product page.
3. Scroll down on the product page and tap "Product settings."
4. Tap on "Configure" to enter the more advanced product configuration settings.
5. In the "Your Content" menu, you will see a list of possible content sources.
6. Select Spotify.
7. Tap on Disconnect.
After tapping on Disconnect, your Spotify account will no longer be linked with your Beosound Core.