He was a member of Mr. Bungle from 1989 to their disbandment in 2000 and has written and performed with Secret Chiefs 3, Dieselhed, and Humboldt County hip hop/reggae/rock fusion band Lakota.

California blended lounge, pop, jazz, funk, thrash metal, Hawaiian, Middle Eastern, kecak, and avant-garde music.

Umlaut's eclectic musical stylings reside in the same vein as McKinnon's previous bands, Mr. Bungle and Secret Chiefs 3—injecting an energetic and whimsical blend of pop, jazz, avant-garde metal, symphonic atmosphere, and electronica into its sound.

According to McKinnon: "Melbourne is a very hip place as far as music and musicians and there's no shortage of good musos, so I'm super lucky that I ended up here; it just made the most sense.

[7] Band members Guest performers Release date: October 10, 2009 Label: Orchard The album's single "Atlas Face" features Faith No More frontman and fellow Mr. Bungle bandmate Mike Patton on lead vocals.

[11] Release date: August 29, 2014 Label: Romero Records / Orchard From MusicTrust: "Unlike the many other bands that seem bent on simply reveling in mad energy generated by constantly shifting and juxtaposing interludes and sections within the one 'song', there is a much higher level of compositional delicacy at play here.

Meditative and charmingly addictive forays into experimental pop from the mind of Mr. Bungle saxman Bär McKinnon, with some help from Melbourne legend Angus Leslie (Sex on Toast).

Ensemble members have played in various bands, such as Estradasphere,  Mr. Bungle, Farmer's Market, Umlaut, Probosci, I.S.S., Don Salsa, Secret Chiefs 3, and others, earning the status of "supergroup" for the avant-guard genre.