About this app
This app makes the Marcussen/Moerdijk pipe organ sample set available for playing with MIDI keyboards and a MIDI pedal connected to your iOS or macOS device. The sample set of the organ of the former St. Stefanuskerk in Moerdijk, Netherlands, is used with the kind permission of Ariaan Hoogendijk. For more information about the app and the underlying Napo framework, please visit the support page http://polaron.de/MarcMoerd/ , the Napo documentation at http://polaron.de/Napo/ and in particular the user manual at http://polaron.de/Napo/manual . *** For your attention *** This app is a huge download of nearly 2 GB. Make sure there is enough free SSD space on your device.
Latest release
What’s New
Upgraded from Napo 5.17.2 to Napo 5.18.1. - Bugfix in convolution reverb (delayed late reflections). - Pitch shifting range increased to ±200ç. - Loading saved settings is now be done by a short-tap. - Audiobus updated to version 3.0.15.1. Plus the changes of Napo 5.18 that you can read about in the Napo version history.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 12, 2026 · 12:41 AM Free
Screenshots
