The article text provided could not be retrieved in full — only the page's navigation menu and title ("Debunking the myth of 'the Seattle sound'") were captured, with no actual body content about the subject. As a result, there is no substantive article content available to summarise regarding the piece's arguments about the supposed "Seattle sound" and its associations with grunge-era bands.

Without the full text, no further detail can be provided on the specific claims, artists, or history the piece likely discusses. To produce an accurate summary, the complete article text or a working link to the full page would be needed.