One of the best ways to grow as a musician or to discover new musical directions is through collaborations. Collaborating with fellow musicians or artists from other disciplines. And the more quality collaborations, the better. Of course, many artists understand and actively use this creative concept, but the most important thing is not to lose sight of its importance and artistic significance in everyday life. Good friends, performers, multi-instrumentalists and composers Donatas Petreikis and Karolis Šarkus have also understood this. The two have known each other for a number of years, during which time they have listened to and discussed a lot of music together, debated saxophone topics and shared the music they create. All of this has always remained within the confines of the studio and has not been made public. Eventually, the two artists had accumulated enough musical knowledge, joined forces and, out of their love for the jazz tradition, the Collaborative Jazz Septet came to light. Karolis and Donatas composed the music and put it together with the band on an album, which was released digitally on 1 November 2020. In the summer of 2021, the album was presented live in six Lithuanian cities. In 2022, the band released a second album and a vinyl album "That Groove", which is also available as a video on YouTube.

The album and the concert are partly funded by LATGA