Live 9 comes with a number of preset Instrument, Audio Effect, and MIDI Effect Racks. Combining Live's built-in devices, these Racks create hybrid instruments and effects with macro knob controls that can be mapped to multiple separate controls for easy control. In a new tutorial, Dubspot blogger Josh Spoon looks at creating your own Racks in Live - and why it's great for your musical expression, working with a controller, and more.