My comics get made at my desk, with my trusty old Cintiq 21UX, a stack of storyboards on A4 paper and a huge (and by huge I mean 1 liter) mug of tea. I get my headphones on and cram my ears full of podcasts and work, work, work.
I find podcasts work better for me than music, since podcasts tend to come in 20-30 minute long episodes, which make me focus for the duration of them. With music, you get 2-5 minutes of music, and then a little pause before the next song begins, and so on - all those little moments of silence give my brain the chance to go running off somewhere and my attention wanders away from my work, and nothing gets done.
My current podcast-picks are Welcome to Night Vale, The British History Podcast, Mike Duncan's Revolutions, The History of Byzantium and The History of Philosophy.
I run on tea and history nerdery.