Pianist/composer Jacob Karlzon—Swedish Radio's 2010 Jazz Musician Of The Year—is difficult to pigeonhole. He's an improviser, a solo artist, a composer and an accompanist, with a longstanding musical relationship with singer Viktoria Tolstoy. In his 20-year career he's released half a dozen albums under his own name and appeared on around 40 others. The Jacob Karlzon 3—the pianist's collaboration with bassist Hans Andersson and drummer Jonas Holgersson