echo-terza is a Seconda (Terza) and Microtonal Scale system for any synth/MIDI setup. It works either separately or in combination, with Root/Transpose control, Note/Chord Finder, and complete MIDI Mapping.

1. Open Terza or Scale (only one active at a time; or Both for combination).
2. Choose Root (C…B) and Preset (Major/Minor etc. for Terza or scale for Scale).
3. If needed, set Transpose (e.g. +2 semitones). Everything adjusts correctly (Terza & Scale).
4. Select Mono/Poly according to your instrument/host (see §5).
5. Play. Tap on the piano to quickly change note/target depending on the mode.

Terza On/Off: Enables second voices (Seconda) according to the selected Terza preset and Root.

Scale (Microtonal) On/Off: Enables microtonal rendering of scale notes.

Both: Terza and Scale simultaneously.

Root & Transpose: Root: C–B. Transpose: in semitones. Everything you hear is transferred correctly (Terza & Scale).

Piano Keys: In Terza mode: tap for quick target change. In Scale/Microtonal: tap to mark/unmark scale note (if Scale is active).

Important: Terza and Scale are independent functions. Work them separately or open Both when you want both together.

Terza in Poly: Works immediately and "catches" on all instruments/MIDI without special setup.

Terza in Mono (Seconda on 2nd channel scenario): You must set a second sound on your synth to MIDI In: Channel 2. The seconda is sent there. Select sound & channel 2 and you're ready.

Scale (Microtonal) in Mono/Poly: In Mono it works everywhere. In Poly, often requires "mirroring" sound/path to apply correctly (depends on synth/host).

MPE / Pitch Bend: Microtonal here works with Pitch Bend. For polyphonic microtonal, check if your instrument supports MPE or special formats. For synths with SysEx microtuning, Echopais provides a separate Scaler app that speaks native SysEx (more accurate, less setup).

• Map a button from your instrument to Chord Finder.
• Press the mapped button and play the chord: e.g. C–E–G → C Major, C–E♭–G → C Minor. The app recognizes the key and automatically sets the corresponding Terza preset regardless of transposition.
• Special presets (e.g. Hijaz, HijazKiar, Sabah): Hijaz: C–E–G + C# → C Hijaz, Sabah: C–E–G + D# → C Sabah. With three fingers like the classics; the additional note determines the path.

• Map a button to Note Finder.
• Press the button and then the notes you want: the app marks microtonal offsets on the selected notes.
• Press again without selection to clear.

Mapping/Learn: Learn any hardware button/slider to app functions.

Map Manager (press & hold): View/change mapped controls and activation pole (Momentary or Toggle).

Global "MIDI Switch Toggle": Changes overall activation type for trigger buttons (Momentary/Toggle).

Panic: Immediate all-notes-off if a note "sticks".

Two automation methods:

1. Portamento CC Auto: Recognizes mono/poly from Portamento. Fast, ~80% reliability.
2. Auto Sound Recognition (Learn): You learn the sound as Mono or Poly once. Then, when you select the same sound, the app automatically returns to the correct mode. More reliable for live.

• MIDI In/Out & Channel Routing: Port selection and channel routing.
• Seconda Volume: Volume of the second voice (Terza).
• Latency: How "tight" the second voice plays with you.
• Note Range: Range/octaves where Terza or Scale are applied.
• MIDI Learn Options: Settings for toggle buttons/auto modes (Portamento Auto & Sound Recognition).
• PC/MPE Mode: For hosts/instruments that support MPE, enable MPE in the plugin/instrument for correct poly microtonal.
• Scale Custom: In Custom mode you create your own scale for Terza—you define for each note which "partner note" will function as Seconda.
• Pitch Bend Range (Microtonal): Default –60. Touch it and enter the value you want.
• Synth Tips: Check your synth's MIDI settings and set sounds correctly for the corresponding mode (Mono/Poly, channels, MPE etc.).

Save/load Terza or Scale presets. If you change mode, the preset automatically adapts to the corresponding system.

• For Terza-Mono: always set a second sound on CH2.
• For Microtonal Poly: prefer MPE-capable instruments/hosts or double channel/sound where needed.
• Keep consistent Pitch Bend Range between app and synth.
• Use Sound Recognition for reliable auto Mono/Poly in live.

Visit our official ECHOPAIS YouTube channel for tutorials, demos, and tips.