“Show HN is for something you've made that other people can play with”. It doesn’t have to be a product, and I can’t see anything in the guidelines that precludes sharing “toy projects”. On the contrary, a “Show HN needn't be complicated or look slick.”

It’s up to the community to use upvotes to determine what’s interesting to the audience, not individual self-censorship of what might offend those “grognards”.

I disagree. DAWs are huge pieces of software to begin with and doing high-performance audio work in the browser would be very impressive.