bullfrog synthesizer

Created by Erica Synths & Richie Hawtin is an educational electronic music instrument designed to captivate and inspire both youth and professionals alike.

Unlock your musicality and combine the thrill of electronic music production with a comprehensive learning experience!

Richie Hawtin
The Bullfrog is a synthesizer dreamed up by Erica Synths and I to inspire and welcome a younger audience into the world of electronic music. Although first considered for someone’s first steps into synthesis the final robust design will also fit comfortably into anyone’s studio and/or performance setup. I can’t wait to see where the Bullfrog leads a curious new generation.
Richie Hawtin Electronic musician


voltage controlled oscillator (VCO)

Analogue VCO with CV controlled waveshapes

noise generator and mixer

Noise generator and mixer with external inputs

envelope generators

Two looping envelope generators

a short introduction into sound physics and subtractive synthesis

Before we start exploring the Bullfrog as a tool for sound synthesis, let’s look at some basic concepts behind the sound itself.

how the bullfrog works

In order to fully understand the functionality of this synthesizer, let’s take a closer look at the individual “modules” and let’s try them in action!
Bullfrog Schema

performance tips and tricks

You may wonder – what’s that strange connector on the top of the Bullfrog? This is the VOICECARD slot. Voicecards expand functionality of the Bullfrog and make it even more versatile.