Surface leverages a feedback delay network to create resonant textures that respond dynamically to x-y pad controls. This design brings a unique approach to sound modeling, capturing the essence of natural acoustic surfaces with expressive tonal variation.

The timbral characteristics of Surface closely resemble those of hand drums, offering a rich and organic sonic palette. By manipulating the x-y pad, users can explore a range of resonances that evolve naturally, enhancing the depth and complexity of their sound.

Incorporating a 'vary' parameter, Surface introduces subtle variations to MIDI loops, adding a layer of realism and preventing repetitive patterns. This feature ensures that sequences maintain an authentic and lively feel throughout the performance.