Ether-Cosmos comprises twenty pieces for piano. Each piece lasts approximately 1-3 minutes, except piece no. 18 which lasts longer than 12 minutes. Ether-Cosmos No. 6 is about 1.40 minutes in length. Ether-Cosmos No. 6, using the same contrapuntal procedure technique as fugue and also imitating Paul Hindemith’s Series 1 and 2 as the compositional materials. Though the two series, by which a pitch level organization of relationships between the twelve tones of the chromatic scales is called “Series 1” and the harmonic order of increasing tension of the intervals is called “Series 2,” are applied, a one-single-note as the pitch centricity is still significant and is played in the Neotonality style of composition.