Free Virtual Synthesizer based on Commodore 64, BPB 64


Bedroom Producers Blog has introduced BPB 64, a freeware Commodore 64 virtual synthesizer for Mac and Windows.

BPB 64 is a sample-based freeware Commodore 64 virtual instrument. The included patches were sampled from three different Commodore 64 units. Audio was recorded directly from the SID chip without any additional processing.

A MSSIAH cartridge was used to program the synth patches and to trigger the sampled Commodore 64 units via MIDI.

BPB 64 includes 37 presets, covering bass sounds, leads, pads, and ‘authentic’ C64 arpeggios. The user interface features a filter, an ADSR envelope, four built-in effects (chorus, reverb, delay, distortion), and modulation.


  • 37 presets
  • Low-pass filter
  • Distortion
  • Chorus
  • Reverb
  • Delay

BPB 64 is available now as a free download.


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