ButterSynth vs ECHO

ButterSynth is a hybrid 6-oscillator wavetable/FM/sample-based AUV3 and standalone synthesizer with a vast sonic range, from gentle pads to screaming leads and basslines. Mix any combination of wavetable, FM, sample and other synthesis engines for one truly massive sound. For the more advanced users, you'll love using ButterSynth's thoughtfully designed interface, incredibly powerful modulation matrix, fully-featured internal FX rack, factory waveform and sample libraries, and almost limitless scope for fun, experimentation and sound design. For less experienced synth programmers, ButterSynth includes a library of hundreds of ready-to-use presets, sparking your creativity to start making music right away. Headline features include - Mix and match any combination of 6 synthesis engines to either emulate your favourite synths of yester-year or build a synth ready for the future. - Dual-wavetable engines also feature 9 phase modes, wave folding, and deep unison controls modelled on vintage hardware synths. - Built-in wavetable editor gives you the ability to tweak, morph, and hand-draw your own custom wavetables, with each wavetable supporting up to 256 frames. - FM engine offers 4 operators with a selection of 12 modulation paths. Each operator can be loaded with any waveform from the factory or user library, and can also self-modulate via the feedback dial. - Sample and Granulator engines both let you load samples (either imported or from the factory library) and control precisely how they are chopped, triggered and layered. Both also feature the same powerful unison modes available in the WT engine. - Highly configurable 32-slot modulation matrix featuring precise mix/max ranges, self-modulation (via the amount target), plus configurable response curves and layer modes. Simply long-tap any parameter to set it as a Mod destination! - Full suite of versatile control sources which includes: 4x MSEG-style looping curve envelopes, 4x LFOs, 4x step sequencers, X/Y pad with motion recording, 8x Macro dials and a powerful arpeggiator inspired by Kirnu Interactive’s Cream. - The EFX rack lets you build your own insert effects chain using any combination of the 16 built-in FX modules. Modules available at launch include delay, reverb, distortion, chorus, OTT compression etc. Note - FX parameters can also be targeted by the mod matrix, unlocking the possibility to program ‘per voice’ modulated effects. - All presets, wavetables, samples and other settings are stored in the Files app, making bulk import/export, backup and community sharing quick and easy. - All of this is housed in an irresistibly designed 4-tab UI that makes synth programming quick and fun.

ECHO-TERZA is an advanced microtonal MIDI controller designed for musicians, composers, and performers exploring alternative tuning systems and intelligent harmonization. With its professional TERZA engine for seconda/terza voices, a powerful microtonal system, and a full suite of routing and performance tools, ECHO-TERZA opens new creative possibilities for modern music production and live performance. Key Features * TERZA Engine – Professional seconda/terza harmonization for any synth. * Auto Chord Detection – Intelligent chord recognition with automatic preset switching. * MINOR HARM System – Three modes: Natural Minor, Harmonic Minor, Hijazskiar scale. * Poly / Mono Modes – Poly: full harmonization · Mono: seconda via separate channel. * Microtonal Engine – Precise pitch bend control with custom scales. * Dual System (BOTH) – Run TERZA + Microtonal simultaneously for advanced harmony. * Transpose System – Real-time transpose with chord detection compensation. * MIDI Learn Pro – Fast & Normal modes with smart routing automation. * Auto Sound Detection – Smart Mono/Poly switching via Portamento CC. * Advanced Presets – TERZA, Scale, and Combi presets with flexible toggles. * Custom Scales – Create and save your own microtonal scales. * Universal Connectivity – Works with all synths · Bluetooth MIDI supported. * Trigger Button Mapping – Flexible trigger button mapping for live setups. * Sound Manager – Full sound management and quick switching. * Auto Sound Recognition – Intelligent sound detection for streamlined workflow. * Multi-Channel Output – Multiple output channels for studio and live rigs. * Smart MIDI Routing – Intelligent routing that simplifies complex setups. * Switch-Toggle Mode – Choose between momentary or toggle trigger behavior. * Note Range Control – Define MIDI note ranges for split keyboards. * Latency Control – Fine-tune timing to fit any setup. * Volume Control – Precise per-channel/trigger volume adjustment. Why Use It ECHO-TERZA is more than just a controller – it’s a harmonization and microtonal system that: * Integrates seamlessly with DAWs, AUM, Audiobus, and hardware synths. * Delivers seconda/terza voices and microtonality without external modules. * Sets up fast with MIDI Learn Pro and stays stable in live performance. Credits Designed & Developed by * Giannis Tsotsis – Developer * Georgios Tsotsis – Designer © 2025 ECHOPAIS MIDI System · All rights reserved.