1is

1is is a minimalist, algorithmic music composition created by Austrian composer Thomas Nust. The piece, released in 1966, generates a musical output based on the binary digit "1". The composition fits within the criteria of what is considered algorithmic music.

The innovative approach employed by Nust involves utilizing an 8-track tape player to generate a unique musical composition. The player is programmed to repeat a 6-second phrase 150 times, generating a composition of 15 minutes duration. Each repetition respects the established musical material, with slight variations utilized to avoid the perception of repetition.

A seeking principle plays a large role in the creation of 1is. A color-coded planning system was employed by Nust to select musical patterns from a predetermined set of materials. In accordance with this system, certain colors correspond to different musical elements, such as legato, or held pedals, used to emphasis a uniform tonality across the piece.

The work remains relatively unknown, a fact attributed to its limited marketing, due to the financial constraints of the situation at the time. Nonetheless, it remains a notable example of computer-generated musical composition. Despite being largely out of print, and availability being limited to a handful of remaining copies, 1is remains a significant piece of music from the mid 20th-century.

Thomas Nust continued to create music at an incredible pace throughout the 1960s, producing numerous works, often advocating for the integration of electronic music with acoustic instruments. Nust also went on to collaborate with other notable musicians and compilations throughout his career, while releasing works that reflected his increasing exploration of transgressing silent areas.