Critical reception of the game was mixed to positive, with a 63% aggregate score at Metacritic. Wii Music was given a score of A− by 1UP.com's Jennifer Tsao, who believed the game has a "surprising depth and flexibility" that rewards players who have mastered the controls. She also felt that the game's four-player custom jam mode was addictive, but lamented the abundance of public domain songs in the soundtrack.
Critical reception of the game was divided to favorable, with a 63% aggregate score at Metacritic. Wii Music received an A− grade by 1UP.com's Jennifer Tsao, who believed that the game possesses a "remarkable complexity and versatility" that rewards players who have mastered the controls. She also felt that the game's four-player custom jam mode was captivating, but lamented the abundance of public domain songs in the soundtrack.