Other pieces that involve found sounds are not necessarily focused on the original context. In "Errata Erratum", participants may select and mix sounds and images provided by the artist, Paul D. Miller aka DJ Spooky. The voice of Marcel Duchamp is mixed in a sea of beats and whirs. Miller's soundscape might be the realization of Duchamp?s quest for non-retinal beauty. "Soundbox" is a piece that Michiel Knaven has been developing since 1999. It is a series of virtual instruments containing short samples and phrases and allowing the control of pitch, volume, speed, repetition, and direction. With both "Soundbox" and "Errata Erratum", the emphasis is on the mix created by the participant rather than the recognition of the sound's source.

The interfaces differ greatly from piece to piece. In "Stereo" Michael Sellam explores how we process combinations of sight and sound with a microsound-inspired net version of a 19th century stereoscope. William Duckworth's site "Cathedral features a number of virtual instruments, sound pieces, and documentation of live performances of the band by the same name. Online since 1997, "Cathedral" allows participants to collaborate with others online by playing an number of virtual instruments. These collaborations can also be incorporated into the Cathedral band's live performances. Somewhere between Detroit techno and the visual jazz of De Stijl is Conor O'Boyle's "Looptracks." Participants alter the sounds in this club music inspired piece by dragging an icon and clicking on brightly colored shapes.

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