These great demos explore a side of HollowTone that goes beyond standalone soundscapes. In both performances, it becomes the environment around a live instrument, creating a rich, evolving backdrop that gives the music space, depth, and atmosphere. One piece pairs HollowTone with guitar, the other with mellotron, revealing how differently the same sonic world can interact with contrasting instruments.
While HollowTone is primarily designed for meditative textures, relaxation environments, and immersive soundscapes, these examples show another creative possibility: using it as a living foundation for larger musical compositions. The shifting layers remain expressive and self-sufficient on their own, yet leave room for lead instruments to emerge naturally in the foreground.
Beyond simply showcasing the sounds of the instruments and the app, both videos offer a practical look at HollowTone’s capabilities and demonstrate how it can be integrated with other instruments and music software to create atmospheric, layered, and deeply evocative musical spaces.
HollowTone creates living sonic environments filled with movement, depth, and subtle variation. Whether used on its own or alongside other instruments, it provides a rich atmospheric backdrop for relaxation, experimentation, and creative music-making.
These demos show HollowTone in a musical context, working alongside other creative tools and, in one piece, blending with a live guitar performance.
While HollowTone can easily provide a rich atmospheric background, it is equally capable of carrying its own musical thread within a composition. Its layers can support harmonic material, create evolving textures, or introduce noise-based and drone-like elements that weave naturally around other sounds. Whether paired with software instruments, experimental processing, or acoustic instruments, it tends to become part of the same sonic space rather than sit on top of it.
One of the goals behind HollowTone was to make this process immediate. Its structure is designed to be easy to understand at a glance, allowing new ideas to emerge quickly without getting lost in complexity. Each layer exposes only the controls that truly matter for its particular behavior, no generic parameter overload, no unnecessary distractions. The result is an instrument that can be integrated into a project in minutes while still offering plenty of depth for exploration.
The videos below are a few examples of how HollowTone can move between subtle support and a more active musical role, depending on the needs of the composition.
HollowTone is a place to explore sound as atmosphere - a quiet world of shifting textures, deep pulses, fluid motion, digital flicker, and soft human-shaped warmth. It isn't a traditional synthesizer or a simple ambient player. It's a procedural audio instrument that lets you shape entire environments with just a few gestures, creating spaces that feel alive, mysterious, and gently immersive.
The most fascinating sounds in HollowTone rarely come from a single layer alone. Each layer has its own character, color, and personality, but the real magic emerges when they blend together in different proportions. As they interact, familiar textures begin to dissolve, giving way to something entirely new - a sound world that feels greater than the sum of its parts.
In this demo, three layers come together to form a continuously evolving atmosphere: the deep resonance of HollowPulse, the intimate presence of VeilBreath, and the organic foundation of MistRoot. What begins as distinct sonic elements gradually merges into a flowing texture where subtle events emerge, linger for a moment, and gently fade back into the surrounding space.
For more meditative and immersive results, try using slower, longer pulses with higher density settings in both HollowPulse and VeilBreath. This creates a calm, breathing structure that unfolds naturally over time, inviting the listener into a state of quiet attention.
Layers in this demo:
MistRoot - The Foundation Layer. A gentle field of air, texture, and quiet movement.
HollowPulse – The Resonance Layer. A slow, deep movement inside an unseen structure.
VeilBreath - The Whisper Layer. A soft, human-shaped warmth behind a translucent veil.
Of course, each layer can also stand on its own as a complete ambient texture, ready to become part of a composition, installation, soundtrack, or personal listening space.
Beyond the layers featured here, HollowTone offers additional dimensions of movement and contrast. FlowMorph can introduce fluid motion and evolving presence, shaping the atmosphere with gentle transformation. GrainSteps adds tiny flashes of digital life, unexpected pulses and shimmering interruptions that contrast beautifully with the smoothness of the other layers, making the overall soundscape feel even more alive, unpredictable, and continuously unfolding.
HollowTone is a place to explore sound as atmosphere - a quiet world of shifting textures, deep pulses, fluid motion, digital flicker, and soft human-shaped warmth. It isn't a traditional synthesizer or a simple ambient player. It's a procedural audio instrument that lets you shape entire environments with just a few gestures, creating spaces that feel alive, mysterious, and gently immersive.
If you're looking for a complete guide to the app and its capabilities, don't miss this detailed review by Mark Hurst. His reviews are always thorough, easy to understand, and packed with useful insights. I'm very grateful for the attention and dedication he brings to showcasing my work.
HollowTone is a place to explore sound as atmosphere - a quiet world of shifting textures, deep pulses, fluid motion, digital flicker, and soft human-shaped warmth. It isn't a traditional synthesizer or a simple ambient player. It's a procedural audio instrument that lets you shape entire environments with just a few gestures, creating spaces that feel alive, mysterious, and gently immersive.
HollowTone is a place to explore sound as atmosphere - a quiet world of shifting textures, deep pulses, fluid motion, digital flicker, and soft human-shaped warmth. It isn't a traditional synthesizer or a simple ambient player. It's a procedural audio instrument that lets you shape entire environments with just a few gestures, creating spaces that feel alive, mysterious, and gently immersive.
Each layer inside HollowTone behaves like its own living entity, generated entirely in real time without samples. Blend them together and new forms emerge: fog-like air, cavernous resonance, flowing noise, glitchy sparks, or distant vocal presence. These sound worlds work beautifully as meditative backgrounds, relaxation environments, dreamlike spaces, or darker atmospheres for games, videos, and creative projects.
Despite the complexity beneath the surface, HollowTone is easy to navigate. The nine macro parameters let you shift the entire soundscape with subtle, expressive control, while the built-in randomizer offers quick ways to discover new ideas - from gentle variations to completely unexpected worlds.
Whether you're seeking calm, tension, inspiration, or a place to wander, HollowTone invites you to explore sound intuitively. No rules, no fixed paths - just a quiet landscape waiting to be shaped.
HollowTone is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook M1 and later. HollowTone works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, and supports Audiobus and Ableton Link. On MacOS, HollowTone can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. HollowTone has a built-in detailed description of all parameters also available as PDF file on the application site.
While my new app HollowTone awaits approval in the App Store, take a look at the ExoSphere app that full of impressions and inspirations.
This demo shows ExoSphere built entirely from custom samples. The soundscape you hear is shaped from ordinary source material: synthesizer recordings, fragments of machinery and urban spaces, musical excerpts, spoken voices, and found sounds of many kinds.
One of the most interesting aspects of ExoSphere is how it transforms these raw ingredients into deep atmospheric backgrounds, evolving textures, and immersive soundscapes. With thoughtful sample placement across the five layers, familiar sounds can become something entirely different: the atmosphere of an imaginary world, the echo of abandoned structures, or a vast and mysterious environment that feels suspended outside time.
The process does not require complex setup. Simply assign suitable material to each layer and let the interaction between them create movement and depth. And if you prefer to start immediately, ExoSphere includes a carefully curated sample library that provides a rich collection of ready-to-use sounds for building expressive ambient compositions from the very first session.
ExoSphere is a creative tool for shaping continuous ambient and meditative compositions, based on five independent sound layers that merge into a seamless atmosphere. It provides an effortless way to create a foundation for ambient tracks or even a complete background piece with minimal adjustments. Designed with slow rhythmic structures in mind, it is especially suited for meditative music and calm soundscapes.
The icon for the new HollowTone app, created by the brilliant designer Guido Flichman, perfectly captures the essence of the HollowTone and continues a series of equally magnificent, minimalist icons for other apps.
HollowTone - Deep Ambient Worlds
For creators who love tension, mystery, and the uncanny: HollowTone generates atmospheric worlds ideal for sci-fi, dark fantasy, liminal spaces, and subtle horror. No samples, no loops - just living procedural sound you can sculpt in real time.
HollowTone is a place where sound becomes atmosphere - and atmosphere becomes a world.
HollowTone invites you into a world shaped by atmosphere rather than melody - a place where sound becomes space, motion, and quiet emotion. It’s a creative instrument for building immersive environments: drifting fog, deep internal pulses, fluid textures, digital sparks, and soft vocal warmth that feels almost human.
Every layer is generated procedurally in real time, giving you deep, evolving sound without complexity. You can explore intuitively through macro controls or discover new ideas instantly with the built-in randomizer, which offers gentle variations or entirely new worlds with a single tap.
HollowTone is for those who enjoy creating mood rather than music - meditative spaces, dreamlike environments, darker cinematic tones, or subtle backgrounds for creative projects. It’s a quiet invitation to shape atmosphere, explore depth, and step into a sound world that feels alive.
If you're drawn to immersive soundscapes and spaces that invite focus, reflection, or quiet exploration, you may find a natural companion beyond this experience.
ExoSphere - opens an evolving ambient universe of endless textures, gentle motion, and atmospheric depth, creating a place where time seems to dissolve into sound.
NoiseSpace - explores the raw beauty of noise itself, letting you shape and wander through rich, shifting sonic textures that feel organic, tactile, and endlessly alive.
Step into a realm of sonic instruments designed for those who crave discovery, unpredictability, and deeply sculpted sound. These tools invite you to bend reality through evolving textures, granular atmospheres, shifting noise structures, and intricate rhythmic mutations. Their engines thrive on complexity - feedback systems that behave like living organisms, multi‑layer environments that drift and transform, and processors that twist raw audio into shimmering, fractured, or meditative forms.
They reward curiosity: build vast ambient spaces that feel architectural, carve rhythmic fragments into new patterns, or push simple signals into dense, otherworldly sonic ecosystems. Whether you’re shaping drones, glitch sequences, cinematic noise, or abstract sound art, these instruments offer a playground where every gesture can spark unexpected motion. They encourage deep listening, bold experimentation, and the joy of discovering sounds you didn’t know were possible.
Chill Modern Mellotron M4000D Vibraphone, Stellarvox iPad Effect App
Jonathan Block - "Here’s a quieter jam/soundscape than usual, with the M400 vibraphone sound from the Mellotron M4000D Mini (from MellotronFactory) the only sound I used. No hardware effects this time, just the iPad effect app, Stellarvox and Spatializer to widen the stereo field since the Mellotron output is mono."
The Mellotron M4000D Mini brings the charm of the classic Mellotron into a compact, modern instrument that's far easier to live with. It preserves the unmistakable character of those iconic tape-based sounds while offering the reliability, portability, and clarity of a digital engine.
Hybrid reverb with an artificial space designer, combining it with algorithmic reflections tail processing, is ideal to creating immersive ambience of deep spaces, lush atmospheric textures or stunning whispering backgrounds in your ambient, electronic, experimental and sound design projects.
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