Sew Hut's chord changes are based on two very significant recordings - So What by Miles Davis and Impressions by John Coltrane. Both songs have chord changes that use the dorian minor scale and can be classified as modal music. Having only two different chords makes it easier to make pitch choices. Having only two different chords makes it more difficult to create harmonic and melodic interest since the tonal flavor of the tune is static.

The original albums of these recordings by Miles Davis and John Coltrane are both rich in content but very different in style. The 1959 Miles recording is on the all-time best-selling album Kind of Blue. The tempo is moderate, and Miles’ solo is one the best-known solos in the history of jazz. The melody on the original recording is played by bassist Paul Chambers. Bill Evans the who plays piano on this version played unique chord voicings based on
intervals of the fourth.

The John Coltrane recording of Impressions was recorded in 1961 but, released in 1963 and is also a classic played by many jazz musicians. The melody of Impressions sounds similar to Morton Gould’s 1939 American Symphonette #2 Pavanne. So What, and Impressions are monumental recordings and both have stood the test of time.
 
Famous Recordings that have the chord changes of Impressions and So What include:
George Benson – Beyond the Blue Horizon (1971)
John Coltrane – Live at the Village Vanguard (1961)
Miles Davis – Kind of Blue (1959)
Miles Davis – Miles Davis at Carnegie Hall (1963)
Miles Davis – Live at the Plugged Nickel (1965)
Eddie Jefferson – Body and Soul (1968)
Wes Montgomery – Live at the Half Note (1965)
George Russell – So What (1983)
Jeremy Steig – Flute Fever (1963)
McCoy Tyner – Infinity (1995)