This message was posted on behalf of Intel Corporation
Thank you for contacting Intel® technical support. I will be more than happy to help you.
I understand that you are looking for assistance in setting up an Intel® NUC device to stream music without using a screen but using Cortana* to search and play the music in Spotify*.
The Intel® NUC devices can work without a screen. As for the rest of your request, this is basically software and hardware setup that does not require any special configuration regarding the Intel® NUC itself.
You will need to check if you are able to set Cortana* up to be able to search and play music from Spotify*, and look for a way to connect and possibly split as many speakers as you need.
Our only recommendation regarding the Intel® NUC device itself would be to check that the audio driver is properly installed and up-to-date so you can have better support in your system.