Professional Music Production and EngineeringNEW

Justin Gray is a producer, bassist, composer, and educator based in Toronto. He is the 2026 Grammy Award-winner for Best Immersive Audio Album for Immersed, which was recorded in Humber's Gordon Wragg Recording Studios.

As a producer, recording, mixing and mastering engineer, Justin has worked with artists from across the globe in a diverse range of musical styles (synthesissound.com). As a Dolby ATMOS mix and mastering engineer, Justin is also a leader in the field of immersive audio production (immersivemastering.com).

As an electric bassist, double bassist, and Bass Veena player, Justin performs in a variety of traditional and contemporary musical ensembles from around the world. Additionally, Justin leads his own contemporary world music ensemble, Justin Gray & Synthesis (justingray.ca).

Over the course of his career, Justin has received a number of awards and distinctions, including: nomination for World Music Album of the Year (CFMA 2020), nomination for Best Solo Artist (CFMA 2018), recipient of Emerging Jazz Artist Award (Toronto Arts Foundation 2015), recipient of Shanti Chakravarty Award for Excellence in Indian Classical Performance (York University 2015).

As a performing artist, Justin is proudly endorsed by Godfrey Guitars, Markbass, D’Addario Canada, Radial Engineering, Lava Cable and Source Audio.

Heather Kirby (she/they/any) is a mastering engineer, musician, and educator. After years of producing and engineering from recording studios across Toronto, Heather currently runs her own studio, Dreamlands Mastering, where she collaborates with local and international artists to help complete their creative projects. Heather loves working on a range of musical styles, and has mastering, production and composer-performer credits on hundreds of commercially released records including Polaris Prize- and Juno-shortlisted albums. Heather was a member of the band Ohbijou, which released multiple LPs (Last Gang Records, Bella Union), toured internationally, and were selected for the inaugural Indie Band Residency program at the Banff Centre for Arts and Creativity. Heather is also a member of the feminist queer art-rock cover band Vag Halen, labelled by Kreative Kontrol’s Vish Khanna as “one of Toronto’s most exciting and confrontational rock bands”. Heather is passionate about building a more inclusive music production industry and dedicated her MA research (Communication and New Media, McMaster University) toward developing a community-engaged music technology education project that worked to dismantle systemic barriers for women/trans/non-binary participants. She has demonstrated her investment in Canada’s music industry by participating in the Music Advisory Committee for the JUNO Awards, as a FACTOR juror, and through participation in panels and workshops presented by Toronto AES, Songwriters Association of Canada, and the Canadian Music Centre.

As an educator, Heather has taught music and audio production to undergraduate students, graduate students, and professional artists at Toronto Metropolitan University, Sheridan College, and Trinity Square Video. She was delighted to join Humber’s Bachelor of Music program as a professor in 2023. 

Andrew Mullin is an audio engineer and educator who is passionate about capturing and shaping sound and empowering musicians to realize their artistic vision. Whether running a large-format console in a commercial studio or operating his mobile recording rig in a one-car garage, Andrew is distinguished by his ability to enhance the creative potential of those around him. Andrew completed a bachelor’s degree in music in 2006 at McGill University and went on to earn a master’s degree in sound recording in 2008. During this time, he studied with George Massenburg and completed post-production work with the Philadelphia Symphony Orchestra. As a freelance audio engineer, Andrew has been fortunate to collaborate with a wide range of artists including The O’Pears, Justin Dunlop, Bear Mountain, The Wooden Sky, Nick Doneff, Vivienne Wilder, Gord Hyland, Union Duke, Georgian Bay, The Ladom Ensemble; with projects by Amanda Tosoff (Words) and Mark Kelso (The Chronicles of Fezziwig) earning Juno nominations. Andrew joined the music production team at Humber Polytechnic in 2010 as a staff engineer, recording and mixing over 50 student EPs before transitioning to teaching full time.