At the heart of machine learning, an area of artificial intelligence, is the representation and generalisation. Expression is an evaluation of data, and generalisation is processing of data that is not yet known.

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This music was worked with ideas from machine learning. The flute and viola are played by the players and the electro-acoustic is played through the 'player-1' programmed on the computer. 'player-1' learns the music of the flute and viola and executes it with the learned data. This is expressed as a space through the speaker. The flute, viola, and player-1 three musical instruments form a hierarchical structure and are restructured as time progresses. Music is further expanded through changes and developments in sounds made by three musicians.