Cuong Vu's 2006 album "It's Mostly Residual" is a captivating journey through the realms of free jazz, jazz fusion, and traditional jazz. Released under the Auand label, this 57-minute collection of six tracks showcases Vu's virtuosity as a trumpeter and composer. The album opens with "It's Mostly Residual," setting the tone for the experimental and expressive journey that follows. Each track, from the introspective "Expressions of a Neurotic Impulse" to the dynamic "Blur," offers a unique blend of improvisation and composition, highlighting Vu's innovative approach to jazz. With its intricate arrangements and bold performances, "It's Mostly Residual" is a testament to Cuong Vu's artistry and his ability to push the boundaries of jazz.