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.

Version 2 — Sound Studio & Full Audio Engine Tetratonics is now a playable instrument. • Sound Studio — A new three-tab panel for shaping your sound: Tetratonic (melody), Chord (harmony), and Mix. Everything in one place. • 17 Curated Instruments — Choose from 8 chord timbres (Rhodes, Strings, Synth Pad, Vibraphone, Guitar, Grand Piano, Perc Organ, Warm Pad) and 9 melodic timbres (Celesta, Marimba, Flute, Music Box, E. Piano, Harp, Clavinet, Vocal Lead, Square Lead). Each is individually calibrated for loudness parity — switching instruments never requires touching the volume. • 6 Chord Voicings — Root Position, Open Position I (Drop 2), Open Position II (Drop 3), Tetratonic (root + guide tones + your scale notes voiced above), Root + 7th (shell), and Root Only. • 3 Articulations — Strum Up, Strum Down, and Block, with a variable strum speed slider. • 4 Velocity Contours — Flat, Rise, Fall, and Accent Root, each visualised as a sparkline in the UI. • 7 Playback Patterns — Ascending, Descending, Pendulum, Arc, Resolve Up, Resolve Down, and Block. • Custom Sequence Ordering — Drag the four tetratonic notes into any order. Any pattern applies on top of your custom base. • Independent Mix — Separate chord and tetratonic volume sliders. • Harmonic Diamond — A live 12-tone chromatic ring color-coding every note by harmonic function: core (blue), guide tones (green), natural extensions (amber), altered tensions (crimson). • Starting Point Chips — See all valid scale starting points, color-coded by interval function, sorted by harmonic tension. • Favorites — Save combinations, group by chord type / tetratonic type / date, preview with one tap. • Session Resilience — Survives phone calls, headphone unplugs, and Bluetooth device changes without audio artifacts.

Welcome to Tetratonics 2.0 — our biggest update ever. We've bridged the gap between mathematical abstraction and sensory intuition, transforming Tetratonics into a premium harmonic auditioning studio. What’s New in 2.0: The Sound Studio: A brand-new glassmorphic command center to control everything you hear. High-Fidelity Audio Engine: Featuring 10 meticulously curated instruments (5 for harmony, 5 for melody) with a proprietary normalization system so every patch sounds perfectly balanced. Context-Aware Voicings: The app now acts as your intelligent accompanist. When you select a tetratonic scale, the underlying chord automatically adjusts its voicing (e.g., dynamically adding a #5) to match perfectly. Professional Articulations: Sculpt your sound with Root Position, Drop 2, Drop 3, or Shell voicings. Adjust strum speed, velocity contours, and rhythmic "feel." Custom Sequencing: Build melodic licks by dragging the 4 scale notes into any order, or use 7 built-in mathematical gestures like "Arc" and "Pendulum." Tactile Feedback: Targeted waveform animations and high-fidelity haptics close the sensory loop. Discover a lifetime of harmonic color, now in vivid high-fidelity audio. If you enjoy the update, leaving a review helps immensely!

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