Klas Lindblad has been composing and producing music since the early 90s. Under his stage names Sasse and Freestyle Man, he has released hundreds of productions from the early 90s until today.

Since 2003 he has been running BlackHead Studios in Berlin with a focus on mixing and mastering. He has worked with talents such as Fatboy Slim, Eats Everything, Henrik Schwarz, Rodriguez Jr, Michael Mayer, andme, Ewan Pearson, Tracey Thorn, Hot Since 82 and Jonas Saalbach to name but a few.

Klas lectured mastering at the famous Abbey Road Institute in Berlin from 2018 to 2020.