If I just need to concentrate for a bit I often grab this piece from Cave Baby DJ.
When I’m coding at night, around 10 or 11pm with headphones, I need to make sure that after an hour or so I take a break and stretch. This playlist has a few smooth tracks to break things up before going into proper EU-industrial trance.
There are also coding moments where trance doesn’t work, so for that I have a great list centred around Grace Jones.