Software

Harmonic Series Spiral Synth (2021)
An online synthesiser and interactive visualisation of the harmonic series in the form of a logarithmic spiral. This model is based on Erv Wilson’s 1965 publication as well as Catherine Lamb’s related creative and pedagogical practice.
Web App (desktop only!)

Plainsound Harmonic Space Calculator (2020)
A calculator to convert just intonation pitch relations into HEJI notation. Features include explicit spelling and frequency of the reference pitch (1/1), cent deviation and frequency information for 47-limit JI pitches and corresponding pitch bend data for notation software.
Web App