Pretty Lights
Gramatik
For PL you’d be surprised how much a slower tempo can change a song, all music on official website is free and 1,411 kb/s wav files
Try Electro Cali
From album Filling up the City Skies disc 2
and slow down about half speed. Turn off all time-stretch tempo effects so it slows like a record
For really chill tones, play
PL - shining bright
From album “gazing at the glare”
at 60% speed, and you might just fall asleep