Organ Tuner

This app is for professional pipe organ builders and technicians. It addresses the special tuning needs of building, tuning and maintaining pipe organs.

Notable features:

• Covers the note range of C0 (32' pipe) to C9 (1/16' pipe)
• available MIDI control of keys with Bluetooth as a key holder
• Handles mutation ranks (Quint, etc.) and Celeste ranks
• Built-in compensation to track and compensate for temperature changes during tuning
• Calculates pipe cutoff for trimming new pipes to length
• Optional connection to Bluetooth temperature sensor for compensation of pitch
• Precision phase display for very precise tuning plus a spectrum display
• Accurate to 0.02 cent
• Provides many historical (unequal) temperaments for period music (See our support web page for a complete list.)
• Switches notes automatically up to 4 notes away

Organ Tuner has two different displays that are visible at once. One is the strobe-like Phase Display. This is a band where black squares move left or right. You tune to make the squares stop moving. The other is a Spectrum Display. This is a graph that shows a peak for every pitch present in the sound. You tune to make a peak in the graph move to a central red line. Having both the Phase Display and the Spectrum Display visible at once gives you a more complete picture of the tuning than any single spinner-type or needle-type display.