Cursus Vereor is a synthesizer that creates sound from a dynamically generated wavetable. It gives the user spectral-like controls in three different modes based on different conceptualizations of frequency: Fourier, which uses sine waves; Daubechies, using wavelets; and Walsh mode, using the Walsh transform. Cursus Vereor parametrizes a wide variety of sounds, but because the sounds are all based off of orthogonal functions, it has a musical tone structure and can produce an extremely wide variety of harmonic sounds. CIV can be shaped to create gentle plucks and pads but excels at organic and synthetic basses and aggressive tones. Plus, a multimode filter and VCA controlled by an ADSR envelope and a vintage-inspired chorus allow for further dynamic and tonal shaping.