Remember when you were a kid and your favorite song would come on the radio? You’d grab a hairbrush to use as a makeshift microphone and sing your heart out — without the slightest concern about the quality of your voice.
And wasn’t it even more fun when good friends were singing along with you, belting it out together with complete abandon? What a joyous way to connect and create bonds — to feel a part of something important... and everlasting.
According to the much-loved Brothers Koren, transformational voice leaders and co-creators of Your Big Voice, song is a potent vehicle for connecting to that fully alive, engaged, uncomplicated place inside...
And the power of singing with others — especially in harmony — can provide you with a sense of vitality, self-trust, and enhanced physical, mental, and emotional wellbeing.
Even if you’re among the many people who think you can’t sing because you don’t have the spectacular musical finesse that you admire in your favorite vocalists, or you just don’t trust your own pure expression... singing in harmony isn’t as hard as you may think.
Not only that, but when you experience your voice blend with others into something more vast and transcendent than you can create on your own, you’re likely to find a sense of accomplishment and acceptance that can be hard to find in this often divisive world.
Embark on Isaac and Thorald Koren's 7-module course, in which you'll be guided to use your voice — what they call your whole-body instrument — as an expressive tool to create harmony within yourself, harmony with others, and alignment with your life, your purpose, and the pulsing patterns of the universe.
While you will learn the basic music theory behind creating harmony — and experience a wide variety of fun yet powerful vocal practices to tune your ear to the harmonious notes your whole being wants to release — this program isn’t just about making beautiful music.
And, it’s definitely not about singing “better.” It’s about learning to revel in the one-of-a-kind beauty and sonic identity of your voice... so you can live in harmony with yourself and the world around you, and tap into the vast reservoir of collective energy that’s always just a note away.
Through Thorald and Isaac’s embodied voice work, you’ll learn how sustaining simple vowel sounds and tones can create harmonics, which you can direct to various body areas for real-time healing.
As you let go of inhibitions and your judgmental inner voices — and start to freely express yourself through the universal language of music — you’ll pave a path toward profound self-discovery, self-trust, and the deep understanding that you hold an essential and unique place in the world.
The world needs to hear your sound because it’s a powerful reflection and conductor of your soul and an essential part of the uniting harmony that your community (and the world) so urgently needs.
In this course, you’ll learn easy-to-implement vocal tools to help you move from a state of dissonance to one of harmony, from conflict to peace, from illness to vitality, from fear to trust, and from loneliness to connection.
You’ll be guided in creative games and simple processes to help you tap into the music within you and access your unique inner song anytime you desire. You’ll even experience a collaborative song-writing process!
If you’ve had any experience with the Brothers Koren, you know how present and loving they are, not to mention that they’re two very enchanting singer-songwriters. It’s almost impossible not to feel an instant ease in their presence. Even if you’re an I’m-not-a-singer type, they have a gentle and compassionately metered way of helping you break through that illusion.
What’s even more unique about the Brothers is their unmatched capacity to break your heart open — to elicit an intense feeling of expansiveness as you sound or sing along with them.
With Thorald and Isaac as your trusted guides, you’ll discover the healing power of your voice and celebrate your artistic soul expression.
Their goal is to ground you in harmony, both musically and as a state of being, opening you to personal evolution and blissful communal experiences. It’s a journey of self-discovery, an awakening of all your sources of harmony... so you can shape a life that resonates with who you truly are.
In this 7-module transformational course, Isaac and Thorald guide you through the fundamental skills and competencies you’ll need to gain the confidence to use your voice as a vital tool for creating harmony within yourself and in the world. You’ll experience your voice blending with others into something more vast and transcendent than you can create on your own — no previous musical experience required!
This course features step-by-step teachings and experiential practices from Isaac and Thorald. Each session builds harmoniously upon the previous ones, so you’ll develop a complete holistic understanding of the practices, tools, and principles you’ll need to create musical harmony with your voice and cultivate a state of peace within yourself, with others, and in the way you engage with life. Your purchase includes 24/7 ongoing access to your course content, allowing you time to review the materials at your own pace and integration.

In this opening session, you’ll explore how the transformative power of your voice can help you achieve inner harmony.
Harmony with yourself means feeling a deep sense of contentment, clarity, and coherence, which becomes accessible as you engage in simple, yet profound practices involving your voice, breath, and attentive listening. These vocal processes and games are designed to help you revel in the beauty of your own voice, whether or not you think you can sing, while providing a soothing escape from your internal chatter — those persistent “small voices” that often lead to discord, dissonance, and discomfort.
You’ll unearth the art of using your voice as a tool for self-discovery and inner peace, learning how to tune in to its soothing qualities and foster a new level of wellbeing and vitality.
During this first session, you’ll:

Get ready to delve into the natural harmony that resonates between us through our voices!
In this session, the Brothers will guide you to play with singing harmonies to deepen your understanding and comfort with adding your voice to the larger chord of life. You’ll experience firsthand the power of using your voice to communicate, collaborate, and create — with no prior singing experience required!
Isaac and Thorald believe that everyone is naturally equipped to express themselves by sharing their voice, ensuring it’s heard and valued by others. As you start to attune your voice and your musical ear, you’ll tap into your inherent musicality and vocal prowess.
Your voice’s unique frequency forms an essential part of the collective symphony of voices, which lacks its full potential without your active and generous participation. You’ll learn to appreciate and savor the entire spectrum of vocal interaction as you engage in real-time experiences of both harmony and dissonance.
In this session, you’ll:

This week, you’ll be invited to immerse yourself in the symphony of the universe through a vocal sound bath, guided voice meditations, and a collaborative song creation experience.
You’ll delve into the natural principles of harmony, synchrony, and emergence, using sound and deepening vocal exercises. You’ll get a taste of the Brothers’ “Creative Process Design,” a method they’ve used with thousands of people to create songs through harmonic principles.
You don’t have to worry if you have no musical background. Astonishingly, your brain is innately attuned to sound and ideas. All you need is a sense of willingness, curiosity, and imagination to embark on this journey through the musical cosmos.
You’ll discover the innate intelligence within your body and brain as they relate to sound and resonance. This class is an invitation to deepen your understanding of the resonant universe and how you interact with and flourish within it.
In this session, you’ll:

The Brothers will lead you through a unique voice healing approach — “Sing The Body Electric” — using your voice to harmonize and tune yourself... and feel more coherent, embodied, and liberated.
You’ll explore the Sonic Anatomy, demitones, resonant zones, and healing “tone-ics,” which the Brothers also co-created with Eileen McKusick over their last 3 years of collaboration. You’ll learn how sustaining simple vowel sounds and tones can create harmonics, which you can direct to various body areas for real-time healing.
This session will offer profound insights into the emotional landscape of your body, revealing how emotions manifest sonically. Isaac and Thorald will show you how to use sound and music as tools to express and balance emotions, aligning both your physical body and biofield. It’s an opportunity to understand and harness the therapeutic power of your voice in a holistic and healing way.
In this session, you’ll:

During this module, you’ll harness your accumulated voice experiences to release creative blocks and unlock your own creative human potential.
The Brothers will guide you to tap into the greater consciousness and the creative universe to discover your own soul’s song — trusting the music coming from within you.
You’ll explore how reception and expression serve as gateways to achieving coherence and trusting in your own creative impulse.
You’ll learn techniques to channel ideas from the collective consciousness, project positive intentions, and exert influence — using the luminescent and sonic power of your voice.
This class is also designed to help you tap into the vast reservoir of collective energy always at your disposal.
In this session, you’ll:

Embrace the art of self-expression and the profound joy of being heard by engaging your courageous voice. You’ll experience the exhilarating feeling of connecting with your creative essence and tapping into the intelligence of life through your whole-body instrument and distinct musicality — and sharing it in a safe space with others.
This session offers a unique opportunity to transcend limiting beliefs and internal discord concerning your voice, paving the way for the liberation of your truest, most authentic expression. It’s a celebration of your individual voice, an exploration of its power and beauty, and an invitation to share your unique sonic identity with the world.
This isn’t just about sharing your voice, but rejoicing in its uniqueness and the deep connections it enables, because, when you truly show up, you have a loving influence and impact on others.
In this session, you’ll:

This closing session is dedicated to exploring how to continue supporting the development of your voice — creating lasting fractal impact on the rest of your life.
You’ll reflect on and acknowledge your progress through the course, focusing on the growth and expansion of your voice and its impact on your soul’s journey.
You’ll develop a deeper understanding of your voice as the harmonizing tool of your life as you’re invited to nurture a positive, ongoing relationship with your voice — integrating it into your daily routine. The Brothers’ goal is to empower you to carry your unique message clearly and with intention, because the world needs your voice. Are you ready to share it?
In this final session, you’ll:
In addition to The Brothers’s transformative 7-module course, you’ll receive this special bonus offering to complement the course and take your understanding and practice to an even deeper level.

In this conversation with Thorald, Isaac, and transformational voice leader Fred Johnson, they discuss the profound and mystical aspects of the human voice. You’ll discover how the voice is not just a tool for communication, but a powerful link between the physical and spiritual realms — the body and soul. They delve into the intricate ways in which your voice is intertwined with your spiritual essence, inviting you into reverence and respect for journeying through the sacred act of human expression.

Receive new and exclusive backtracks from the Brothers Koren, created to help you practice harmonizing.These five harmonic voice activations are meant to inspire and draw out your own harmonic vocals. Designed to complement the course, these tracks vary in style and complexity and are suitable for all skill levels. Crafted to enhance your ability to create beautiful harmonies, you can use them to explore and improve your vocal abilities — anytime, anywhere — adding depth to your learning journey.


Experience a unique opportunity to be mentored by and learn from transformational voice leaders Isaac and Thorald Koren, co-creators of Your Big Voice — from the comfort of your own home. Each session includes a streaming video and will guide you on a musical journey to reveal your voice as a tool for harmonious living, community engagement, and alignment with yourself and the world around you.
In addition to the high-quality videos and MP3 audios, you’ll also receive session transcriptions. You can then review, print, and highlight the most important insights and practices you were given.
Between sessions, you’ll have the option of completing related exercises, practicing new tools, and answering questions to accelerate your learning and integrate each lesson.
If you don’t absolutely LOVE Your Harmonious Voice — or don’t feel that it meets your needs — please submit your refund request form 14 days from your date of purchase and we’ll happily issue qualifying customers a refund.

Isaac and Thorald Koren (the Brothers Koren) are transformational voice leaders, music mentors, and artists who are passionate about hearing “the world’s song, one voice at a time.” They’re committed to bringing the healing power of music to voices from all walks of life. With over 20 years of experience recording, teaching, and empowering others while touring the world, their work continues to grow and expand the space for creative expression, leading people toward a more embodied life experience.
Over the course of their musical careers, as The Kin and the Brothers Koren, they have performed live on Conan, earned a gold record, and performed for over a million people while touring with Coldplay, Pink, Rod Stewart, and Bon Jovi. Today, their mission has shifted to one that seeks to include many voices, as they listen and study the transformative effect of voice and music on human wellbeing.
The Brothers are journeymen and guides for those seeking deeper connection and healing through the profound medium of voice, music, and song. They live in service to a bold vision: “Our wish is for each and every person to be radically expressed; a world where all genders, races, ethnicities, and human lives are fully connected to their voices, their stories, and their authentic selves.”
Through their programs, The Songwriter’s Journey and Your Big Voice, the Brothers Koren are helping thousands reclaim their voices (especially those who thought they couldn’t sing out) — and the stories and songs that have lain dormant — unearthing a diversity of big voices from all around the world. The Brothers have worked with Fortune 500 companies, presented at TEDx, are faculty at the Exponential Medicine conference, and are musical directors for the Association of Transformational Leaders™ SoCal.