Organ Tuner3.3 - App Store

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.

Version History Support for Blue Maestro DiscMaxi, DiscMaxi 3 in 1, and DiscMaxi 4 in 1 temperature sensors for optional temperature compensation. 3.3 Jul 22 1. A more accurate Spectrum Peak calculation makes the multi-pitch display more accurate.
2. Celeste settings (beat rates at C3 and C6) can now be saved by name and restored later.
3. The Phase Display strobe speed is now a smooth logarithmic function of the tuning error, which gives more resolution when close to the target pitch and more range when further away from the target.
4. List of historical temperaments is now shown in sorted order alphabetically to make it easier to find the one you want. 3.2 06/22/2024 Performs key holding functions on organs equipped with a MIDI interface through the use of a MIDI/Bluetooth adapter. 3.1 09/04/2023 * Optional Dark Mode is now supported.
* Two more temperature sensors for temperature compensation are now supported: the Govee GVH5075 and the Oria Wireless Thermometer. For a complete list see
www.tunelab-world.com/bluetoothdevices 3.0 03/01/2023 * Modified handling of interruptions from phone calls to improve the restarting of Organ Tuner after the call.
* Corrected the reading of the Moat S2 temperature sensor.
* Added support for two more Govee temperature sensors. 2.7 03/05/2022 Fixed a bug in the iPad version with iOS 14 that caused the displayed menu for automatic Bluetooth temperature readings to be compressed at the top of the screen. A similar problem existed with the pipe cutoff mode menu. Both menus are now fully visible in the middle of the iPad screen. 2.6.2 03/26/2021 Fixed a problem that prevented entering or editing the offsets that define a non-equal temperament on some devices. 2.6.1 01/29/2021 * Added support for three new wireless temperature sensors: Moat S2, Govee H5074, and Inkbird IBS-TH1
* Option for temperature updates every 10 minutes or every 1 minute
* Added gestures for fast control of auto note switching, spectrum display scaling, and resetting offsets
* Added button for quick access to multi-pitch display option
* Changed vertical scaling of spectrum display to always show at least 30% of full scale to examine minor peaks in the spectrum
* Expand mutation rank selector to also offer selection of partials.
* Updated all the context-sensitive help files with more hyperlinks. 2.6 12/31/2020 1. Added support for new BlueMaestro temperature sensors (2017).
2. Enabled two-fingered reset of Offsets.
3. Offsets are zeroed when doing a calibration.
4. Tone generation now uses the speaker instead of the receiver for a louder tone. 2.5 11/27/2017 1. A particular remote temperature sensor sometimes caused a crash. This was fixed.
2. For organ builders, a pipe cutoff calculation has been added to help trim pipes to length. 2.4 12/14/2016 Fixed "cancel temperament" bug under iOS 9
Eliminated extra ".tem" in temperament name when making a new temperament. 2.3 11/14/2015 iOS 9.1 compatibility issue fixed. 2.2 10/31/2015 * More sensitive auto note switching
* Support for additional brands of Bluetooth temperature sensors
* Voicing display showing strengths of 12 harmonics
* iPad screen formatting improved to use full width and height 2.1 05/11/2015 * Optional automatic temperature setting from a Bluetooth sensor
* Multi-pitch display speeds tuning of mixtures, mutations, and extended choruses
* Generated tone with optional harmonics
* Major 6th mutation rank multiplier corrected to x5/3 2.0 06/07/2014 Fractional mutation rank multipliers have been added.

The numeric display of tuning error has been upgraded with a more exact calculation that is just as accurate for a 100-cent error as it is for a 1-cent error. Previously it was less accurate for very large tuning errors, which impacted the cutting of new pipes.

A more robust recovery from interruptions due to phone calls has been implemented.

Support for 4" iPhone screen has been added. 1.3 07/02/2013 For Celeste ranks you can specify a beat rate pattern for either a constant beat rate or a gradually rising beat rate.

For added visibility the Spectrum Display optionally can be drawn with thick traces. 1.2 05/16/2012 Spectrum Display resolution improved for low bass notes. Extended coverage of numeric tuning error. Improved interface for making a new temperament. Added decibel display for current partial. Volume indicator changed to logarithmic instead of linear. 1.1 04/13/2011 1.0 10/30/2010