Johan Ullén is a Swedish pianist and composer who has gained recognition for his innovative interpretations of classical music. Known for his virtuosic technique and deep understanding of musical structure, Ullén has released several critically acclaimed albums, including "Infinite Bach," "ReBach: D Minor," and "ReBach: E Major." His unique approach to classical music, which often involves improvisation and experimentation, has earned him a dedicated following among music lovers and critics alike.