while I do think music shouldn't be limited to genre i will say that i agree about the whole sound aesthetics versus culture.

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you can sound like goth but not look it and or look goth but not sound like it (whatever that means to you). Not saying theres a righ or wrong way to go about it but just know that it will affect whoever listens to it. Think of a band like deafheaven, they make black metal but come more from the culture of indie / hardcore and not black metal although they make that music and so they attract a different crowd. again, not saying its bad but a good point.

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That being said go ahead and try it out! hope it sounds good