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Cassette Keys.01 for SFZ Player

Expansion Packs by THEPHONOLOOPAlso available in a bundle

The Idea & Process

It's a unique mixture of physical modelling and fm synths recorded on a cassette with an old & wonky cassette recorder. It has a range from C0 to E6 and 4 carefully designed velocity layers. The GUI is very simple (Kontakt version), yet useful and almost synth-like - so just like its predecessor Cassette Piano, it’s very easy and fun to work with.

Every note of this instrument has been carefully de-noised with a high quality algorithm to avoid noise stacking when playing more than one note. Noise can still be added with the noise slider - it’s much more flexible this way and allows the ability to adjust the volume of the noise independently whilst also applying parameters such as filtering. It also creates a more realistic sound, so when playing a five voice chord, only one sample of noise instead of five stacked on top of each other will be heard.

The End Result

  • Useful and Fun Production Tool: If you like vintage sounds and you're looking for something to enhance your production toolbox, then this product will be for you
  • Simple, One Page Interface: Everything is laid out on one page allowing fast sound design possibilities
  • Simulated Round Robin: Makes notes sound realistic when played ostinato (even when playing fast)


  • Compatible with free SFZ player: Plogue Sforzando
  • 848 MB of samples
  • 4 velocity layers
  • 1 preset

Editable Parameters:

  • Volume
  • Volume Envelope
  • Panorama
  • Vibrato Amount (mapped to CC1 / Mod Wheel)
  • Vibrato Speed
  • LP FIlter Cutoff & Resonance
  • HP Filter Cutoff & Resonance

System Requirements

  • Any compatible SFZ player, such as Plogue Sforzando

Note: Any compatible SFZ player, such as Plogue Sforzando is required to run this software. 

Also available in this bundle

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