multiple. i used to listen to just electronic stuff and rock all my childhood, birdy's "1901" got me into chamber pop (and pop in general) around 2012, tool's "lateralus" got me into metal in 2013, are & kriso's "parempi mieli" got me into rap and hip-hop around 2013, miles davis' "blue in green" got me into jazz also around 2013... the list goes on.
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