This is acid.

London duo Posthuman were at the forefront of the 303 revival long before it was fashionable. They’ve been making acid techno since 2001 and run a record label, radio show and club night called I Love Acid, which turned 10 this year.

Posthuman’s Josh Doherty rose to Against The Clock’s 10-minute challenge at his studio in London, where he created a thumping bassline using his Bass Bot 303 clone, Roland 707 and Fruity Loops in his signature acid style.

Watch above, and listen to the full jam below.

Watch next: Esa – Against The Clock