Currently, for every neume, there is an x- element which contains a <style> element, and a span element duplicating the same style: <span style="font-family: Neanes; font-size: var(--byz-neume-font-size); ">.
This makes the html unnecessarily large, and could be easily fixed, by setting those styles globally, and only once:
x-neume > span
font-size: var(--byz-neume-font-size);
What do you think?