Instrument tuner

Tuner mode lives inside Frequency Finder. Pick Chromatic or an instrument preset, watch the cents needle, and adjust A4 from 430 to 450 Hz.

How it works

Slide Frequency to Tuner. Instrument choices appear only in Tuner mode: Chromatic, Guitar (standard), Drop D, DADGAD, Bass, Ukulele and Violin. The large readout shows the note or nearest open string. A needle spans about -50 to +50 cents. Within roughly +/-5 cents the status says in tune.

A4 starts at 440 Hz and can be set anywhere from 430 to 450 Hz. Silence and noise stay blank. Clipped analysis frames do not move the needle.

Why it is inside Frequency

Tuner reuses the same pitch engine as Frequency Finder. That keeps the Tools row clean and means one preview use covers both views for a visit. It is a practical bonus for musicians, not a claim to replace dedicated tuning apps with years of polish.