It depends on what I'm doing. If I am deep in thought, or in the flow, or generally just getting a lot of work done I look up mixes of Trance / Progressive House / PsyTrance etc. Some of my favourite YouTube channels for this are:
If I'm researching, doing admin work or generally testing new concepts, I generally go to Deezer and listen to my Flow, which is a selection of favourited songs and songs the Deezer thinks are similar. I have found several new artists like this.
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