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Acoustic Grand Piano Plugin by Bitsonic
Keyzone by Bitsonic is a Virtual Instrument Audio Plugin for Windows. It functions as a VST Plugin.
System Requirements
Intel Pentium Celeron 1800 1024 MB RAM. Microsoft XP/Vista/Windows 7/8 32-bit VST 2.4
Copy Protection
My KVR - Groups, Versions, & More
32 KVR members have added Keyzone to 17 My KVR groups 44 times.
Not In Your MY KVR Groups
(or group limitation prevents versioning)
+14 in private groups

KVR Rank

Overall: 1842   1798

30-Day: 1764; 7-Day: 1766; Yesterday: 4392

Keyzone is a free layered sample based piano and accordion VST instrument plug-in.


  • Grand piano wet.
  • Grand piano dry.
  • Sad pad.
  • Pitched grand 1.
  • Pitched grand 2.
  • Grand small.
  • Grand medium.
  • Rhodes piano1.
  • Rhodes piano 2.
  • Accordion.
  • Hammond B3.
  • My good angel.


  • Reverb.
  • ADSR.
  • Vibrato.
  • Detuner.
  • Octave.
  • Semitone.
  • Velocity curve.
  • Filter of velocity.

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Comments & Discussion for Bitsonic Keyzone

Discussion: Active
29 April 2015 at 6:31pm

I downloaded and installed version 1.4, but the results were not so good: The standalone does not react to MIDI on any channel. The VST, under VST Host, reacts to MIDI, but the sustain pedal still has problems - you do get sustain when you press the pedal, but it remains on after you let go.

I posted this info in Bitsonic's Facebook page, asking for help, but I got no reply to any of my four attempts...
Would someone please help with this? Is there anyone else with similar problems?

Thanks in advance.


26 June 2016 at 9:00pm

Hi slurpy, .

while I don't have those problems with ver. 1.5 (win32), there is still a sustain pedal problem. Keyzone seems to have a limit of polyphony, which means, after a number of keys pressed with sustain pedal on, it doesn't accept more notes. You have to release sustain then to continue playing. Very disappointing for me, because I like the Keyzone Piano sound very much.

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