This is an example on how Quartz Composer compositions work inside Serato Video-SL. The velocity of the spinning record controls the Y-axis of the line and the crossfader controls the opacity of the line segments.

I wanted to try to do something like the Visual Scratch -project: Sorry about the crappy scratching. I'm a bit rusty, because I didn't have turntables in Montreal so I couldn't practice for 9 months.

More information and the .qtz file:

Music by the Finnish dubstep-superheroes Demonic 1 & Dr. Coil. The song is called Bottomless Pit and it’s from their Treblescience EP.


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