S7 Edge UK - how to stream audio?

[AC Question]

New to the S7 Edge this week and, as a long time iPhone user, am loving it so far. Apologies if this is a stupid question but I can't figure out how to enable audio streaming and then how to stream audio - either via Bluetooth or DLNA.

Please bear in mind I am VERY new to Android devices so if anyone can help me with a step by step way to do this I'd really appreciate it.

Thanks for any help