Tenney

Pitch as a physical space.

Just-intonation tuner & lattice — serious tracking, zero clutter.

See harmony. Land pitch.
Lattice as a map. Tuner that locks.
Ready to explore? Join the public beta.
Phase-slope refinement 2nd-order digital PLL Real-FFT (Accelerate) Prime-limit control HEJI lens Pro audio input Stage mode Scale library
Tenney lattice screenshot
Tenney tuner screenshot

Join the Tenney public beta

Get early access and help shape the just-intonation toolkit.

Join beta

Lattice as a map of harmony.

Tenney renders pitch as coordinates. Pan, zoom, and fold the audible band. Labels adapt to density; guides and prime overlays (7, 11) can be toggled on demand.

Prime-aware layout

Per-prime basis vectors place nodes by monzo. Angle/length come from log2(p), so movement tracks musical distance.

Nearest ratio with neighbors

Oddized p/q labels; fast search under your prime limit. Shows lower/higher neighbors in Hz with cents error.

HEJI lens

When you focus a node, the staff lens displays ratio + Δ¢ vs ET; full HEJI glyph set hooks in cleanly.

Lattice view

A tuner that locks — and stays locked.

Under the hood: real-time FFT on Accelerate, phase-slope refinement for instantaneous frequency, then a 2nd-order digital PLL for low-jitter readouts.

Modes: auto • strict • live

Switch UI behavior without touching the detector. Stage mode dims the periphery; lock targets when you mean it.

Pro input aware

USB/line-in/headset mics are detected and labeled. Works great with silent practice and DI rigs.

Labels that fit your brain

Ratio or HEJI; keep ratio alongside staff if you prefer. A4 reference set to 440, 442, or a custom Hz.

Tuner view

Join the Tenney public beta

Early access. Real feedback. Help shape a JI tool built for stages.

Join beta