that article seems quite generic…
I think designing a music instrument is quite unique in some ways, though like all hardware also has to factor in various compromises… due to things like panel space, price poin, size of unitt etc.
bare in mind, for some, even having a screen is a no-no… .so your target market affects the design too.
(eurorack is quite interesting to look at, as there are so many modules, and so, plenty of examples of design choices)
the book “Push Turn Move” , is an interesting read, has some nice examples of different approaches. (I think there are different versions of this book now?)
also, I listen (eagerly!) to anything that Vlad Kreimer of Soma has to say on instrument design.
what I love about Vlad’s approach is the hyper focus on creating something that musical in a particular way … not trying to be all things to all men.
I think this is the heart of instrument design… pianos/guitars cannot do everything, (they only have one preset ;)) yet we love playing them.