Synaesthesia is a minimal guitar composition which uses multiple colored lights in place of sheet music to cue an orchestra of guitarists. When a color is projected, each player will be prompted to play a note indicated by the color. Adding colors together will generate chords and harmonies that will change over time according to the composition. Using this system, a large number of musicians with a wide range of skill can perform a minimal composition together with little or no rehearsal. The purpose of a large number of guitars is not for volume, but to create a blending effect in which the listener shall not necessarily be able to distinguish any one particular player, but a collective tone. Although the orchestra, dubbed the Color-Tone Drone Band, may be periodically prompted to improvise (which in turn will create a chaotic effect), harmony is most important here, and the dissonance will only be used to emphasize consonance. In addition to the colored lights cueing the players, the same colors will be projected together onto a screen or other object. This is to give a visual representation of the relationship between musical harmony and color harmony to the viewer, and in turn provide a simple way of visualizing the building blocks of music for the listener.