The project name chosen by the duo of Portuguese improvisers, saxophonist Joao Mortagua and pianist Carlos Azevedo, translates to "heel", which they explain "represents the footprint we leave behind as we navigate a constantly evolving musical path", heard in 14 succinct improvisations that balance implicitly lyrical dialog with unconventional and often mischievous technique.

Using simple motives to guide remarkably complex and lyric collective improvisations clearly in the jazz tradition, the Portuguese quartet of João Mortágua on alto & soprano saxophones, Carlos Azevedo on piano, Miguel Angelo on double bass and Mário Costa on drums approach their music with concise expression and a clear exuberance for the music they create.