Enable JavaScript and let the site issue a “not an AI” cookie and it should then be usable. (I have a JS button for this on my toolbar and it’s come in handy a lot recently..)

Now they need templates

That just reminded ne of something from here I had completely forgotten about. Someone had posted making sort of dubious claim of guitar power chords being Turing complete. I made some small improvements (as I saw it, chiefly around how they had implemented their clock) to the code they posted https://news.ycombinator.com/item?id=42294766 which lead me down a rabbit hole of guitar tab as opcodes, which eventually lead to something useful after throwing away the silly guitar virtual machine, since I had now done the work of implementing far more than the simple tablature parsing code I intended. That project that resulted from the silly toying around with tab notation as machine code lead to a midi-to-tab generator, which lead to audio to midi to tab, and a bunch more.

That project, for anyone interested in such things, is today https://github.com/scottvr/gtrsnipe There are useful demonstrations in the repo's wiki.