In their second album the trio of saxophonist Ellery Eskelin, bassist Christian Weber and drummer Michael Griener revisit the music of jazz tradition through the modern ears of the free improvisation, alternating the music of Jelly Roll Morton, Scott Joplin, Harry Edison/Count Bassie, and Russell Robinson with original group compositions, a fascinating contrast in time and style.

Taking their title from a 19th century text by Hermann von Helmholtz on acoustics and perception of sound, the trio of NY saxophonist Ellery Eskelin, German drummer Michael Griener, and Swiss bassist Christian Weber present a a series of improvised pieces alternated with early jazz compositions, juxtaposing both approaches to highlight their similarities and the differences.