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Classroom Pumporgan


The Classroom Pump Organ was made around 1880 and uses air pressure to blow its reeds from the inside out, for an open, clear and direct sound. We sampled both the notes and the pump mechanism for a beautifully realistic playing experience.
This library does NOT work with the free Kontakt Player!



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The Classroom Pump Organ was made around 1880 by C.A.V. Lundholm of Stockholm in Sweden. It was used as a Classroom Organ at Whitlockska Samskolan, a private education centre in Stockholm, between 1878 and 1978.

The organ is distinctive for its use of air pressure, as opposed to the more commonly found suction mechanism. The sound is produced by bellows pressing air through the reeds from the inside out. This creates an open, clear and direct sound.

We sampled all notes on the organ, and extended its playable range to C1 – C6 from the original C1 – C5. Additionally, we recorded the pump mechanism at different speeds. You can layer the sampled pump mechanism with your performance, or trigger it directly from the GUI in our scripted program for Kontakt 3+. When combined with scripted variations in note volume, the result is beautifully organic and realistic.
Our Kontakt 3+ program also enables creative chorus and harmony effects that go beyond the possibilities of the original instrument.

The Classroom Pump Organ features:

  • Individually sampled notes and releases
  • Pump mechanism sampled at five speeds in REX and WAV formats
  • 2 round robins for all notes
  • 152 stereo 24-bit WAV samples
  • 1 program for NI Kontakt 3+ with scripted pump controls and GUI
  • 3 programs for NI Kontakt 2+
  • 3 programs for EXS24
The total size of the library compressed is 54 MB.
All formats are included when you buy Classroom Pumporgan.

This library does NOT work with the free Kontakt Player!

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Download PDF manual

Download the manual in PDF format here!

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