[patch] Krell: An Aleatoric Sound (Blofeld)

video upload by Synthesizer Video Service

Also see What is Krell? Louis & Bebe Barron - Ancient Krell Music (Forbidden Planet) & More

"This is a mega-tutorial about how to program the Krell sound from the 1956 film "Forbidden Planet" on a Waldorf Blofeld. You should expect heavy use of modulation and modifiers. But first, we are going to have a look on the history of the Krell patch. Then we start programming with the help of my "Blofeld Modifier Simulator".

Attention! My sorry, I forgot to set the sustain to 65 in envelope 4 :(

[00:00] The Krell Patch (Example)
[01:06] Complaining
[02:38] History of the Krell Patch
[07:30] Programming of Low Bouncing Noise (Part 1)
[17:09] How Not to Do the Low Bouncing Noise
[20:37] Programming of Low Bouncing Noise (Part 2) and Simulator
[29:00] Programming of High Theremin Noise
[36:46] Reverb
[38:14] Arpeggiator
[39:50] Final Patch
[40:53] Summary
[47:38] Outro"

Additional Krell posts

[demo] 10 Minutes of Krell Patch (Blofeld)


"This is a demonstration of a self-playing eternal patch, programmed on a Waldorf Blofeld synthesizer. A lot of modulations and modifiers were used. There was no external post-processing and no external effects were applied. The hands were off the unit and the keyboard, though the arp is playing very slow and long 'notes'.

'Krell' is an alien species from the film "Forbidden Planet" (1956). The soundtrack for these creatures was composed by Louis and Bebe Barron and very popular among modularists. It's a good example for an aleatoric patch - a sound playing with the help of randomness."