Country music was aided by the U.S. Federal Communications Commission's (FCC) Docket 80–90, which led to a significant expansion of FM radio in the 1980s by adding numerous higher-fidelity FM signals to rural and suburban areas. At this point, country music was mainly heard on rural AM radio stations; the expansion of FM was particularly helpful to country music, which migrated to FM from the AM band as AM became overcome by talk radio (the country music stations that stayed on AM developed the classic country format for the AM audience). At the same time, beautiful music stations already in rural areas began abandoning the format (leading to its effective demise) to adopt country music as well. This wider availability of country music led to producers seeking to polish their product for a wider audience. In 1990, Billboard, which had published a country music chart since the 1940s, changed the methodology it used to compile the chart: singles sales were removed from the methodology, and only airplay on country radio determined a song's place on the chart.
Edward Balthasar Moogk (1975). Roll Back the Years: History of Canadian Recorded Sound and Its Legacy, Genesis to 1930. National Library of Canada. N.B.: In part, also, a bio-discography; the hardback ed. comes with a "phonodisc of historical Canadian recordings" (33 1/3 r.p.m., mono., 17 cm.) which the 1980 pbk. reprint lacks. ISBN 0-660-01382-7 (pbk.)
Lucien Poirier, ed. (1983). Répertoire bibliographique de textes de presentation generale et d'analyse d'oeuvres musicales canadienne, 1900–1980 = Canadian Musical Works, 1900–1980: a Bibliography of General and Analytical Sources. Under the direction of Lucien Poirier; compiled by Chantal Bergeron [et al.]. Canadian Association of Music Libraries. ISBN 0-9690583-2-2
This list is so incomplete and so pathetically inept in its order that I believe I’m going to pee-yook. Rush at #5??? The third top-selling band ever. Only The Beatles and The Rolling Stones are ahead of them. Gordon Lightfoot at #16…just spit in his face. He’s been putting out music for over SIXTY years. What about Bob Ezrin? Pink Floyd’s “The Wall” would not exist without him. Neither would a few KISS albums, Alice Cooper tunes, Pat Benatar and several others. Gary and Dave…Ian Thomas is top 20. I don’t argue against Neil Young, kraft dinner(kd) Lang in #4? Rufus Wainwright? Ron Sexsmith does a lot, but has no business being on this list. Were you people smoking herb when you thought up this muddled mess? Horrible…absolutely horrible.