Roland System-100M 190 is a modular synthesizer system that provides a wide range of sonic possibilities. With its versatile design, you can create and modify sounds to your liking. The system includes three main sections: the VCO (Voltage Controlled Oscillator), the VCF (Voltage Controlled Filter), and the VCA (Voltage Controlled Amplifier). These sections allow you to control the pitch, tone color, and volume of your sounds, respectively. Additionally, the system features an LFO (Low Frequency Oscillator) and an envelope generator, which can be used to add modulation and dynamic changes to your sounds. The Roland System-100M 190 is a powerful tool for creating and exploring new and exciting soundscapes.