Every time a music topic comes up on the frontpage, have one beer for each hour it takes for adamnemecek to come around and plug the forever "coming soon" ngrid.io project.
Isn't it really common though for people to advertise in related posts. For eg. I see one another self-promotion in this post too. I am just curious what makes this different.
I don't have a music background and so can't tell anything about ngrid.io, but usually people promoting related products (either self promotion or not) has been very helpful in the past.
For starters, this submission is about learning synthesizers, while ngrid (according to adamnemecek at least) is about music composition. Two different areas in music.
Usually when people self-promote here on HN, it's closely related to the topic at hand, and people explain how it's related to or better than the submission. When adamnemecek promotes his ngrid project, he does no such thing and instead writes something like "I've been working on an IDE for music composition, launching in X months/weeks <insert link>" without describing it more, seems like they are just trying to get more clicks to their projects page. Probably works too, otherwise they wouldn't continue doing so.
And finally, anyone who have been reading comments on music-related submissions here on HN for the last 4 years (yeah, really! Take a look at https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu... and go to the last page!) have seen ngrid being mentioned by adamnemecek on basically every single music-related submission.
There is a time and place for posting your own projects. Doing it on every submission that is slightly related to your projects theme is not that.