Together with Debbie Jaffe, McGee operated legendary Cause And Effect cassette label and distribution, releasing such artists as Merzbow, Nurse With Wound, Controlled Bleeding, Robert Rich, If, Bwana, Algebra Suicide and others.
In the mid 1980s McGee recorded numerous works as a member of Viscera, solo as Dog As Master, and in collaboration with If, Bwana and JABON.
In the late 1980s and early 90s McGee was operating Electronic Cottage label, simultaneously with an Electronic Cottage Magazine.This was restarted as an online zine and community in April 2018.
In the mid to late 1990s Hal McGee released dozens of cassettes of homemade experimental music, solo and in collaboration with Jeph Jerman, Brian Noring (EHI), Big City Orchestra, Emil Hagstrom (Cock E.S.P.), Charles Rice Goff III and others. Also he produced a series of "Tape Heads" cassette compilations on his own HalTapes label.
In the late 1990s and early 2000s Hal McGee started releasing homemade CDr albums. During this time he collaborated heavily with Brian Noring of the FDR Tapes, in person and via mail collaboration, and with his long-time partner Chris Phinney.
In 2003-04 Hal McGee produced the five-volume Quotidian Assemblages compilation project. In 2005 he recorded and released a 2-hour video film called The Secret Life Of Hal McGee.
In 2006, with the encouragement of Andrew Chadwick and Christopher Miller (2), McGee began performing live for the first time since 1987, joining the ranks of Florida's live noise/experimental music scene.
From 2014 to 2015 Hal operated a new label, Kassette Kult Tapes.
Hundreds of McGee’s solo and collaborative releases and compilations, both archival and recent (including many works created in 2012), are available for free from his official Bandcamp page.