GrandPiano Free Virtual Instrument Plugin

Grand Piano


Grand Piano is a free virtual piano instrument plugin (ROMpler) featuring a sampled Yamaha C5 6’7″ Grand Piano.

The original samples (Creative Commons Attribution 3.0 license) were recorded by Alexander Holm [axeldenstore (at) gmail (dot) com] with two AKG c414 condenser microphones placed in an AB position at around 12 centimeters above the strings.

The difference between Grand Piano and Grand Piano XXL is that this version has only 4 velocity layers compared to the XXL, resulting in a smaller size (319 MB).

The GUI is simple and intuitive with attack & release controls, reverb module, and gain. In the middle, there’s a “Tremolo” section with LFO rate & depth for pitch, expression, and pan, plus filter cutoff with selectable lowpass/highpass. You will also notice a “Key” knob – that’s the gain for piano keys release.


  • sampled Yamaha C5 Grand Piano
  • 4 velocity layers
  • keys release noises
  • 48kHz 24bit audio quality
  • 323 MB size on disk
  • attack & release
  • LFO modulation with rate & depth
  • filter cutoff (lowpass & highpass)
  • reverb module
  • global volume



  • Windows 8.1 64-bit or later
  • 2 GB of RAM
  • 323 MB hard disk space
  • VST2 or VST3 64-bit host


  • El Capitan or later
  • 2 GB of RAM
  • 323 MB hard disk space
  • VST2, VST3 or AU 64-bit host



  • VST – copy/paste the extracted folder to: C:\Program Files\VSTPlugins
  • VST3 – copy/paste the extracted folder to: C:\Program Files\Common Files\VST3


  • VST – copy/paste the folder to: Macintosh HD/Library/Audio/Plug-ins/VST/
  • VST3 – copy/paste the folder to: Macintosh HD/Library/Audio/Plug-ins/VST3/
  • AU – copy/paste GrandPiano.component and GrandPiano.instruments to: Macintosh HD/Library/Audio/Plug-ins/Components/