I find that the best music to play would be music without lyrics like computer game music and TV background music. There is one music I always wanted because it makes me feel focused and slightly quicker, it is the background music that plays during the TV show 'how it's made' from the discovery channel, they play techno music in the background and it sounds good to me. One particular episode is very good, it is the camera lenses one; they show how camera lenses are made, the sound track is very good in that episode. I never find the music from the 'How it's Made' TV show, I searched the internet and only ever found the Theme music itself but not the techno music that plays when they are in the factories. I hope I find those tracks one day.
I think some very effective work music would be.
Super hangon game music
Sonic the hedgehog
Super Mario Bros
Mario Kart
Zelda music, especially from the twilight princes game.
Wherever I post this article I will post the music so you can hear for yourself.