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By Markus Sigg

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StrandOrgan lets you play Lars Palo's sampleset of the Strand pipe organ of the church in Kalvträsk, Sweden, on a MIDI keyboard attached to your iOS device. The Kalvträsk Church sampleset is provided by Lars Palo under the Creative Commons Attribution-ShareAlike 2.5 license, see If you would like to use the sampleset with other software, you can get it at

For more information, please consult the app support page , the Napo documentation at and in particular the Napo user manual at .

For hearing sound examples of the app, please visit the support page .

What's New in Version 7.0

New: Audiobus 2 support on iOS 7+, including state saving (stop settings). *** To make this possible but still release the app for iOS 5/6, we had to drop Audiobus support on iOS 5/6. ***
New: Volume control for motor noise, keys noise, knobs noise.
New: MIDI velocity can be used to control the volume of the keys noise.
New: Factory impulse responses can be deleted (and reinstalled at any time).
New: To prevent accidental view switching, view switching is disabled while keys are pressed in a virtual keyboard.
New: Hold function for virtual keyboards.
New: Options for overdrive control: Volume reduction (like before), clipping, sigmoid transform.
New: Stops settings are saved when the app is terminated, and re-established at the next start.
Changed: Simplified design of virtual keyboards on iPad 1 (to reduce CPU stress).
Fixed: Motor noise, keys noise and knobs noise are no more counted as "voices". Motor noise and knobs noise do not prevent the app from being suspended when it is running in the background and not used for some time.


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iPad Screenshot 1
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This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Updated:
  • Version: 7.0
  • Size: 382 MB
  • Languages: English, German
  • Developer:

Compatibility: Requires iOS 5.1.1 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimised for iPhone 5.

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