tuner.endl (10.1 KB)
I built a chromatic tuner for the Endless. Instead of staring at a screen, you hear your tuning through audio cues — Geiger-counter-style beeps that guide you to pitch. It also has a chord mode that rewards in-tune playing with a harmonized chord. Works with any monophonic instrument — guitar, bass, cello, violin, voice, synth, whatever you plug in.
Features
Tuner Mode (tap footswitch to toggle): Tap the left footswitch to enter tuner mode. LED turns dim cyan when idle. Audio feedback guides you to pitch:
-
Low beep = you’re flat, tune UP -
High beep = you’re sharp, tune DOWN -
Beeps get faster as you get closer (Geiger counter style) -
Solid tone = in tune!
Tap the footswitch again to return to chord mode.
Chord Mode (default): When you play in tune, a major triad (3rd + 5th + octave up) swells in above your note — like a backing section rewarding your intonation. Drift off-pitch and it fades away. Great for ear training and practice.
LED feedback is always active — green when in tune, yellow/blue when drifting, red when way off.
Controls
| Knob | Chord Mode | Tuner Mode |
|---|---|---|
| Left | Tolerance (easy ← → hard) | Tolerance (easy ← → hard) |
| Middle | Dry/Wet mix | Beep volume |
| Right | Volume | Volume |
| Footswitch | Function |
|---|---|
| Tap | Toggle between chord mode ↔ tuner mode |
LED Guide
| Color | Meaning |
|---|---|
 Bright green |
In tune |
| Light green |
Close |
 Yellow |
Sharp |
 Light blue |
Flat |
 Red |
Way off |
 Dim white |
No signal (chord mode) |
| Dim cyan |
No signal (tuner mode) |
cheatsheet.pdf (315.0 KB)