looparena (2005, 2007)
loopArena is a generative music interface for live – performance of loopbased computer music.
on a multitouch screen, the user is able to control eight MIDI-instruments such as sythesizers or samplers (soft- and hardware) and a drumcomputer in a playful way.
Every element of the interface is an agent, which means it is enabled to act autonomously. The agents are programmed to generatively alter the music loop, help the user create harmonic melodies and at the same time to inspire the user and animate him to interact with the agents.
No typography, rasters and tools are used, interaction is limited to dragging objects with the fingertips. Every moving element has a function, the „toolbar“ is constantly changing. Musical alteration of the melody is visible to the user.
looparena is written in Processing and uses libAVG for multitouch recognition.