We built ThirdTone in devotion to the potency of sound. Evan brings decades of creating through deep listening. Lisa brings a lifetime of studying the body. Together, we've created something we could not have made alone: sound medicine that invites your body to heal and your mind to open.
Evan Premo Co-founder 
Lisa Masé Co-founder
Binaural frequencies from
acoustic instruments
ThirdTone Ingredients come together to create Formulas and Journeys. The full library lives inside the app.
Brain/Body Formulas and Mind/Spirit Journeys: companions on your path
Real effects, observed across neuroscience and psychoacoustic research.
Binaural beat exposure has been shown to significantly predict post-session relaxation outcomes, accounting for meaningful variance in individual responses.
McConnell et al., 2014 → 22+ Clinical studies analyzedA meta-analysis of 22 peer-reviewed studies found statistically significant effects on anxiety, cognition, and pain perception.
Garcia-Argibay et al., 2019 → Measurable Creative cognition shiftsFrequency-based audio stimulation has been shown to influence divergent thinking—one of the core markers of creativity—with effects varying by individual neurobiology.
Reedijk et al., 2013 → Whole-brain Neural engagementResearch shows that binaural and frequency-based auditory stimulation can modulate activity across multiple regions of the brain, supporting integrated neural processing.
Dougherty et al., 2024 →Your complete frequency pharmacy at your fingertips
Personalized based on your needs.