His blog is here:
https://www.lsalgueiro.com/blog/2021/ls ... y-for-sale
and the font can be bought from Abraham Lee's Music Type Foundry.
https://www.musictypefoundry.com/product/ls-iris

It's more akin to a decent calligraphic hand and less 'crayony' than many others, IMO.
And it's yet another SMuFL-compatible font - though also has the 'legacy' glyphs for old applications.
