Information:  - Mulgrew Miller (August 13, 1955  May 29, 2013) was an American jazz pianist, composer, and educator. As a child he played in churches and was influenced on piano by Ramsey Lewis and then Oscar Peterson. Aspects of their styles remained in his playing, but he added the greater harmonic freedom of McCoy Tyner and others in developing as a hard bop player and then in creating his own style, which influenced others from the 1980s on.  - Michael Cochrane ( born September 4 , 1948 in Peekskill , Westchester County , New York ) is an American jazz pianist who has recorded extensively for SteepleChase Records , as well as Soul Note and Landmark Records . As a sideman , he has recorded with Marvin Peterson , Oliver Lake , Sonny Fortune and Jack Walrath .  - Landmark Records was an American jazz record company and label founded in 1985 by Orrin Keepnews. Landmark's releases included music by Donald Byrd, Jack DeJohnette, Jimmy Heath, Vincent Herring, Bobby Hutcherson, Mulgrew Miller, Buddy Montgomery, and reissues of Cannonball Adderley.  - Robert "Bobby" Hutcherson (January 27, 1941  August 15, 2016) was an American jazz vibraphone and marimba player. "Little B's Poem", from the 1966 Blue Note album "Components", is one of his best-known compositions. Hutcherson influenced younger vibraphonists including Steve Nelson, Joe Locke, and Stefon Harris.  - Charles "Buddy" Montgomery (January 30, 1930, Indianapolis, Indiana  May 14, 2009) was an American jazz vibraphonist and pianist. He was the younger brother of Wes and Monk Montgomery, both notable musicians on guitar and bass guitar respectively.     After reading the paragraphs above, we are interested in knowing the entity with which 'michael cochrane ' exhibits the relationship of 'instrument'. Find the answer from the choices below.  Choices: - bass guitar  - guitar  - marimba  - piano  - vibraphone
The answer to this question is:
piano