This is Ep.18 of 'The New North Podcast', which does a deep dive into the unique ideas and approaches that make Melbourne's exploratory music scene so rich and varied. In this episode, we share an artist talk presented in April 2024 by Narrm raised double bassist, composer and keyboardist Jon Heilbron. Jon unpacks the role of microtonality and non-tempered tuning systems in various phrases of his musical output. Throughout the presentation, Jon refers to musical examples, some of which can be accessed at the links below.    Alvin Lucier - Still Lives: V. Two Floor Tiles https://www.youtube.com/watch?v=rFAYR1msB6A   Arches: Fredrik Rasten/Jon Heilbron https://inexhaustibleeditions.bandcamp.com/album/with-all-your-mysteries-in-the-open-air   Muto Infinitas - Catherine Lamb (performed by Rebecca Land and Jon Heilbron) https://anothertimbre.bandcamp.com/album/muto-infinitas   New North’s activities are made possible by the generous support of Creative Australia and Arts Merri-Bek