"Jonas Kullhammar (September 2, 1978 in Nacka, Sweden) is a Swedish jazz composer, saxophonist and is one of Sweden's most established jazz musicians.

Since 1998 his main group has been Jonas Kullhammar Quartet, and he has participated on over 150 records as a sideman. In year 2000 he released his debut recording, the self-produced "Salut". It won him Sweden Radio's Jazz Cat award as the newcomer of the year. He also received the Django D'or award and received the price Sweden Radio's Jazz Cat as Jazz Musician of The Year in Sweden two years in a row. The group also received the award for jazz group of the year. Since then the band has toured around the world and released more CDs. Jonas is also a founding member of the groups Kullrusk and Nacka Forum. Since 2000 he runs the record label Moserobie, that releases mainly Swedish and Norwegian jazz groups.

Kullhammar has worked with artists and bands The (International) Noise Conspiracy, Carlos Garnett, Nicolai Dunger, Fredrik Nor�n Band, The Torbj�rn Zetterberg Hot Five, Sonic Mechatronik Arkestra, Peanuts Hucko, The Plan, Nina Ramsby, Goran Kajfes, Marcus Strickland, Eldkvarn, Jupiter Trio, The Core, Mulatu Astatke, Salem Al Fakir, The Hives, Ted Curson, Chick Corea, Jason Moran, Dungen, Rickie Lee Jones and many more."

"Jørgen Mathisen (born 27 December 1984 in Oslo, Norway) is a Norwegian jazz musician (saxophone and clarinet), the younger brother of Martin Mathisen (b. 1978), and known from different bands, and a series of recordings with musician like Marc Lohr, Per Zanussi, Steinar Raknes, Eirik Hegdal, Gard Nilssen, and Kjetil Møster.Career

Mathisen is a graduate of the Jazz program at Trondheim Musikkonservatorium (2004-08). He is distinguished by his powerful, expressive play and is a force for all the bands he is involved with. He was first noted in the band Shagma in 2004, and also play within The Core together with Steinar Raknes, Espen Aalberg and Erlend Slettevoll, and within Zanussi Five including Eirik Hegdal, Kjetil Møster and Gard Nilssen, among others."

"Torbjörn Zetterberg (born 10 May 1976) is a Swedish jazz musician (double bass) and composer, known from collaborations with Jonas Kullhammar.

Zetterberg attended Södra Latin och Fridhems Folkhögskola in Svalöv but was first recognised as bassist when he studied at Kungliga Musikhögskolan in Stockholm still very young. Here he studied bass under guidance of Jan Adefelt. Soon he joined drummer Fredrik Norén's band together with the saxophonist Jonas Kullhammar. Already at this point one could sense that he would become a prominent figure in the Swedish jazz scene. Now his name is firmly rooted in the vibrant progressive selection as the new jazz generation.

He went through a personal crisis and did not record as a bandleader for more than seven years. Zetterberg was uncomfortable with his career and in 2010 he decided to leave the urban life including his bass, and moved to a Buddhist temple. There he resided for a year and still spends half of his time there in 2016. This existential crisis led to the production of the album Och Den Stora Frågan ("And the Big Question" in Swedish) in 2014. Here he collaborated with well known musicians from his earlier career, like the Portuguese trumpeter Susana Santos Silva and drummer Jon Fält, known from albums with pianist Bobo Stenson's trio. The album is "charged with joyful urgency, shiny optimism and confident flowing energy, despite the doubts and uncertainties that accompany any creative, artistic process", the reporter of All About Jazz stated in 2014."

"Espen Aalberg (born 12 October 1975 in Trondheim, Norway) is a Norwegian jazz musician (drums) known for his contributions in several orchestras like The Core, Shagma, Kwaz, Håvard Lund Quartet and musicians like Jonas Kullhammar, Håvard Wiik and Torbjörn Zetterberg. He also contributes on a series of recordings.

Aalberg played percussion in Namsos percussion ensemble (1988-1994) and became champion in ensemble playing, after which he studied at the "Musikkonservatoriet" in Tromsø and the Jazz Program at Trondheim Musikkonservatorium (1998-2000). (1999-2002). While studying jazz in Trondheim, he formed the innovative band The Core together with fellow students (including Kjetil Møster, Erlend Slettevoll and Steinar Raknes). He also established the jazz band Shagma in 2004, comprising additional Jørgen Mathisen and Raknes. At the Nattjazz jazz festival in Bergen 2006 he led the band Kwaz comprising Jonas Kullhammar, Håvard Wiik and Torbjörn Zetterberg. In addition Aalberg has contributed within Håvard Lund Quartet.

In 2006 Aalberg and The Core, now as The Indian Core, contributed on The Oslo World Music Festival, after returning from a Tour to India with three hot Indian musicians. The result of this cooperation is manifested on the album The Indian Core (2007).

Aalberg also acts as a drummer in classical music within among others Trondheim Symphony Orchestra, Trondheim Sinfonietta and "Luftforsvarets Musikkorps"."