I think in the 70s and 80s the bass became not only more audible in the mix but it started to develop as an instrument that could come to the fore in a way that it previously hadn’t. Or maybe it had, but we just couldn’t hear it as well, but The Jam, The Stranglers, Japan, plus many others had the bass doing a far less traditional role, with the benefit of a much better presence in the mix.
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