Jazz great Roscoe Mitchell, a composer who’s recorded an impressive 87 albums and written over 250 compositions in the 30 years he’s been in the music industry, has mastered the art of organized improvisation. He plays in a structured, very passionate and intense fashion, all the while improvising and building upon the foundations he’s laid without straying from the base melody. Mitchell can do it all —he’s not only dabbled with the saxophone family, he’s mastered every instrument and then some, and he’s skilled enough to formulate a cohesive-sounding piece of music off the top of his head. Catch this award-winning composer as he comes to the Albright-Knox for a free performance on Friday night (April 27) during Gusto at the Gallery, at 8pm