Moog Music’s Muse: Dual Filter Alchemy in Action

Each Muse filter is equipped with its own cutoff and resonance controls, giving users hands-on access to the signature Moog sweep. The inclusion of envelope amount attenuverters for both filters means modulation can be applied positively or negatively, allowing for nuanced dynamic movement in the filter response. This is a welcome nod to classic modular workflows, where envelope polarity and depth are crucial for expressive sound design.

Keyboard tracking is independently selectable at 50% or 100% for each filter, with further customisation possible via the mod map. This level of control ensures that the filters can track pitch in musically relevant ways, or be decoupled for more experimental results. The video demonstrates how these options combine to create a filter section that’s not just powerful, but also deeply playable and responsive to a wide range of patching approaches.

Moog doesn’t just talk theory—they dive straight into practical examples that showcase the Muse’s filter versatility. Starting with serial routing and filter 1 in high pass mode, we hear how sweeping both filters yields a classic band-pass response. The link filters function allows for simultaneous cutoff control, while the spacing parameter introduces differential movement between the two filters, letting users fine-tune the overlap and carve out their preferred frequency window.

Switching to parallel mode, the video demonstrates how mixing the outputs of both filters—again with filter 1 in high pass—creates a pronounced notch effect reminiscent of phaser tones. Adjusting the spacing control alters the width and character of the notch, offering a different flavour compared to the serial band-pass setup. This approach is classic modular thinking: patching the same building blocks in new configurations to unlock fresh sonic results.

Finally, the stereo mode is explored by panning filter 1 left and filter 2 right, both set to low pass. With careful adjustment of spacing and resonance, the Muse delivers sweeping stereo motion that adds depth and movement to the sound. The result is a filter section that can morph from surgical to immersive, all with a few well-placed tweaks.

Beyond the filter topology and routing, the Muse includes an overload control in the mixer section, letting users drive the filters for added harmonic richness and bite. As demonstrated in the video, increasing the overload introduces drive and subtle clipping, pushing the filters into more aggressive territory without sacrificing musicality. This is a classic Moog trick, and it’s as effective here as ever.

Envelope modulation can be applied independently to each filter, opening up possibilities for evolving, stereo-filtered textures. By assigning envelopes to open one filter while closing the other, the Muse can generate complex, animated movement across the stereo field. It’s a reminder that, while the Muse’s filter section is rooted in tradition, it’s designed for modern, exploratory sound design workflows.