In Surge XT, navigate to John Valentine > Keys > Pipe Organ Flutes and Reeds.
The main sound comes from a resonating noise source, similar to the way pipe organs work. Reed stops and extra flutes at 4' and 2' are available, and a swell control dampens octaves above the fundamental.
Recommended for use with a well temperament, rather than 12-ET.
Macro | MIDI CC | Name | Description |
1 | 41 | Attack | How quickly the air speed builds up. |
2 | 42 | Fundamental | 8' A boost to the fundamental frequency. |
3 | 43 | Swell close | Selectively dampens an octave above for some ranks. |
4 | 44 | Stop 2 | 4' flute |
5 | 45 | Reed 2 | 4' reed |
6 | 46 | Stop 2b 2 | 2' flute |
7 | 47 | — | Not used |
8 | 48 | Reverb | Large room ambience |
This from a decently-arranged old MIDI file, adjusted for pace, dynamics, stops, and playing style. Each of the 13 tracks is a Surge instance, with its stops configured to match the intended purpose. Larger pipes like 16' and 32' are scene-transposed with patch tweaks.