Original sentence: The chief distinctions between alternative metal and nu metal, aside from a somewhat homegeous sound, are the latter's tenuous (or even non-existent) connection to the underground rock scene and the DIY ethos that informed the musical approaches of past alternative metal bands, as well as the reluctancy of alternative metal bands to explicitly align themselves under the heavy metal banner
Edited sentence: The chief distinctions between alternative metal and nu metal, aside from the generic sound, are the latter's tenuous (or even non-existent) connection to the underground rock scene and the DIY ethos that informed the musical approaches of past alternative metal bands, as well as the reluctancy of alternative metal bands to explicitly align themselves under the heavy metal banner