Hi Robin,
First of all, congratulations on SpectraLayers, it’s great.
I have to contend with “in a few” (even in jest), the SDIF format is in fact quite powerful. From (inharmonic or harmonic) partials’ readings to spatialisation, it offers a plethora of means to achieve a “spectral score” of musical and non-musical acoustic phenomena. For a spectrally-minded (and up to a point, knowingly or not, we all are) musician and composer, it’s an awesome tool. Acousticians and sound engineers have much to gain from it too.
All the best,
António