Tetratonics: The 4th Dimension

Tetratonics: The 4th Dimension

Four Notes. Infinite Color.

0 ratings
$0.99

Rating summary

Details

  • Released
  • Updated
  • March 4, 2026
  • May 18, 2026
Tetratonics: The 4th Dimension video #1 for iPhone
Tetratonics: The 4th Dimension video #2 for iPhone
Tetratonics: The 4th Dimension video #3 for iPhone
Tetratonics: The 4th Dimension screenshot #4 for iPhone
Tetratonics: The 4th Dimension screenshot #5 for iPhone
Tetratonics: The 4th Dimension screenshot #6 for iPhone
Tetratonics: The 4th Dimension screenshot #7 for iPhone
Tetratonics: The 4th Dimension screenshot #8 for iPhone
Tetratonics: The 4th Dimension screenshot #9 for iPhone
Tetratonics: The 4th Dimension screenshot #10 for iPhone
Tetratonics: The 4th Dimension screenshot #11 for iPhone
Tetratonics: The 4th Dimension screenshot #12 for iPhone
Tetratonics: The 4th Dimension screenshot #13 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

Tetratonics - The 4th Dimension Four Notes. Infinite color. Step into the 4th dimension of modern jazz harmony. Tetratonics reveals the secret behind modern jazz voicings: take a major or minor triad you already know, add one carefully chosen color tone, and superimpose the resulting 4-note tetratonic structure over any chord. The result is immediate - beautiful, sophisticated harmony within reach. The ultimate harmonic laboratory for improvisers, composers, and arrangers, bridging the gap between abstract theory and concrete sound. --- THE CORE SYSTEM: 10 CURATED STRUCTURES Tetratonics curates the 10 highest-value "Triad + 1" combinations used in contemporary jazz: - 6 Major-Based: (b2), (2), (#2), (4), (#4), (b6) - 4 Minor-Based: -(b2), -(2), -(4), -(#4) Optimized for harmonic beauty and functionality, every combination sounds incredible. --- THE SOUND STUDIO [NEW IN 2.0] Tetratonics is no longer just a visualizer - it's a premium, high-fidelity auditioning space. Rebuilt on a zero-latency audio engine, our glassmorphic Sound Studio lets you play and mix voicings across two independent layers. Assign 17 gain-staged instruments (8 chord pads, 9 melodic leads) with perfect perceived-loudness parity - no volume adjustments needed when switching timbres. --- CONTEXT-AWARE AUDIO ENGINE [NEW IN 2.0] Our Harmonic Intelligence engine dynamically adapts underlying chord voicings to match your chosen scale perfectly. - 6 Voicings: Root Position, Open I (Drop 2), Open II (Drop 3), Tetratonic (upper structures), Shell (Root + 7th), or Root Only. - Articulation: Select Strum Up, Strum Down, or Block. Adjust strum speed, note spacing (Loose-to-Tight), and choose from 4 velocity contours (Flat, Rise, Fall, Accent Root). - Custom Sequencer: Drag-and-drop to reorder scale pitches into custom melodic licks, or apply 7 geometric arpeggio patterns like "Arc" or "Pendulum." --- THE HARMONIC VISUALIZER Our stunning visualizer maps exactly how your chosen tetratonic structure relates to your underlying chord on a 12-tone chromatic ring: - See the tetratonic pitches form a unique geometric shape reflecting precise intervallic relationships. - Notes are color-coded by harmonic function: Core Tones (blue), Sevenths (green), Natural Extensions (amber), and Altered Tensions (crimson). - Tap any note for an instant preview, or pivot your starting point with a tap. --- FLAWLESS ENHARMONIC CALCULATION Drop a Triad + 1 structure over any chord and our analytical engine decodes the result. The app distinguishes between complex contextual choices (knowing when an interval functions as a b5 vs a #11, or b13 vs a #5) and outputs the perfect, standard-compliant jazz chord symbol (e.g., Cmaj7(9/#11), G7(alt)). The intelligent scale builder respects the enharmonic gravity of your chord - over flat roots, you see flats; over sharp roots, you see sharps. Every pitch is spelled correctly. --- THE CONTROL ISLAND & FAVORITES A tactile interface designed for quick adjustments. Rapidly switch between the 10 master archetypes and see your tetratonic formula. When you stumble upon a killer voicing, tap the star icon to save it, and instantly preview or audition it directly from your Favorites library with a single tap. --- DESIGNED FOR MUSICIANS, BY MUSICIANS Built to feel like a high-end piece of gear: - Adaptive Layout: Shifts perfectly between portrait reference and landscape practice modes. - Premium Dark Mode: A "liquid glass" aesthetic that preserves your vision on lit stages. - Haptic Touch: Tuned tactile haptics sync perfectly with note triggers to make the screen feel like a physical instrument. - Pro-Audio Resilience: Rebuilt on a robust signal chain that gracefully handles interruptions (calls, Siri) and headphone changes without dropping a beat. - Strictly Offline: Zero ads, zero subscriptions, zero data collection. Runs entirely locally on your device. Discover a lifetime of modern harmonic color with Tetratonics today.
Show more

What's New in Tetratonics

2.1.1

May 18, 2026

WELCOME TO THE FOURTH DIMENSION: TETRATONICS 2.0 IS LIVE! What was once a silent visual calculator is now a high-fidelity, playable, tactile instrument. Version 2.0 transforms Tetratonics into a professional, zero-latency harmonic laboratory. We have rebuilt the entire app from the ground up around a dual-sampler AVAudioEngine to let you play, layer, and orchestrate modern jazz harmony in real time. Here is the complete, high-fidelity breakdown of everything new in Version 2.0: --- THE SOUND STUDIO --- Step into a glassmorphic control room. Rebuilt as a unified three-tab panel, the Sound Studio lets you sculpt every detail of how your harmony is arranged and performed: - TETRATONIC TAB (Melody): Sculpt the upper structures. Drag-and-drop to reorder scale pitches into custom licks, apply 7 geometric arpeggio patterns (Ascending, Descending, Pendulum, Arc, Resolve Up, Resolve Down, Block), and slide note timing from driving to loose. - CHORD TAB (Harmony): Voiced with 8 gorgeous pads. Select from 6 classic voicings, 3 articulation styles, and 4 velocity contours visualized as live sparklines. - MIX TAB: Independently balance the volume of the chord and tetratonic layers from 0% to 100% of your device's full dynamic range. --- 17 CURATED, CALIBRATED INSTRUMENTS --- No more flat, dry synthesizer tones. Tetratonics 2.0 features 17 studio-grade, gain-staged instruments divided across two independent layers: - 8 CHORD TIMBRES: Rhodes (vintage warmth), Strings (orchestral swell), Synth Pad (ethereal stereo), Vibraphone (metallic bell), Guitar (acoustic pluck), Grand Piano (acoustic benchmark), Perc Organ (classic organ click), and Warm Pad (analog sweep). - 9 MELODIC TIMBRES: Celesta (crystalline attack), Marimba (wooden resonance), Flute (woodwind breeze), Music Box (delicate chime), E. Piano (percussive bite), Harp (sweeping classical pluck), Clavinet (funk-infused bite), Vocal Lead (wordless swell), and Square Lead (digital retro). - PRO LOUDNESS PARITY: Every instrument is individually calibrated across three axes (velocity, sampler gain, and output dynamic ceiling). You can switch from a punchy Clavinet to a breathy Flute with zero perceived volume jumps. --- JAZZ VOICINGS & SHIELDED ENHARMONICS --- Our Harmonic Intelligence engine actively listens to your choices, dynamically restructuring the accompaniment to support your scale: - 6 PROFESSIONAL VOICINGS: Stack them closely in Root Position, spread them using Open Position I (Drop 2) and Open Position II (Drop 3), frame them with Root + 7th (Shell), anchor the bass with Root Only, or play our bespoke "Tetratonic" voicing, which seamlessly fuses the chord's core skeleton with your scale notes voiced as a cohesive upper structure. - THE THEORY DONE FOR YOU: Drop any four-note scale over any chord and watch our engine resolve enharmonic ambiguities (knowing b5 vs #11, b13 vs #5). The scale builder respects key signature gravity (flat roots use flats; sharp roots use sharps) to present flawlessly spelled chord symbols like Cmaj7(9/#11) and G7(alt). --- THE INTERACTIVE HARMONIC DIAMOND --- Our 12-tone chromatic visualizer is now a fully interactive instrument. Notes are color-coded by chord function: Core Tones (blue), Guide Tones (green), Extensions (amber), and Altered Tensions (crimson). Tap any note on the outer ring for an instant, haptic-synced audio preview, or tap the center to trigger the full, combined performance. --- STAGE-READY PRO-AUDIO RESILIENCE --- Built for the gigging musician: - ADAPTIVE INTERFACE: Seamlessly rotates between portrait pocket reference and landscape practice layout. - LIQUID GLASS DARK MODE: Sleek, high-contrast aesthetic designed for lit stages. - AUDIO RESILIENCE: Gracefully survives phone calls, backgrounding, notification alerts, and hardware changes (AirPods unplugs, Bluetooth device switches) without clicks or dropouts. - STRICTLY OFFLINE: Zero ads, zero subscriptions, zero tracking.

More

Developer apps