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music Solfeggio frequencies

Hi music guys!

I apologise again for abusing this forum for my music questions, but then, please use me for film dramaturgy (script, cinematography a.o.) related questions,
but can anyone explain to me how (or if) I can create solfeggio frequencies with non-electronic instruments?
Or are for example Tibetan singing bowls in these frequencies?
Or maybe someone can advice me a book;)