ASET-2121 MythoSpheric Space Synthesizer offers a rich palette of pads, textures, soundscapes, and atmospherics while maintaining efficient CPU usage. It comes in two editions: a free version with two-voice polyphony and 128 patches, and a paid version priced at €20 that supports up to eight voices, enabling more complex layering and performance capabilities.

The synthesizer features two analog-style oscillators with classic waveforms such as sine, triangle, saw, ramp, and square pulses, complemented by two digital PCM-wave oscillators that draw from a selection of 66 different waveforms. Dual filters allow blending between 24dB lowpass and 12dB low/high pass modes, shaping the tonal character. Three ADSR envelope generators and multiple modulation sources, including two LFOs, sample and hold, and a very low frequency oscillator, provide extensive control over the sound dynamics and movement. Most modulation sources can be synced to the host tempo for rhythmic effects.

Additional sound enhancement comes from a specially designed chorus effect tailored for the digital oscillators and a tempo-synced cross-stereo delay with feedback modulated by various modulation sources or manual control. These features combine to create immersive and evolving soundscapes suitable for ambient, cinematic, and electronic music production. The balance between creative sound design options and low CPU consumption makes this synthesizer a practical tool for studios and live setups alike.