To­day in mu­sic his­tory

Winnipeg Free Press - Section G - - ARTS & LIFE -

In 1983, Sony and Philips in­tro­duced their jointly devel­oped com­pact disc sys­tem. The CD is a dig­i­tal medium in which sound waves are repli­cated as a se­ries of bi­nary num­bers on the 12-cen­time­tre disc. A laser in the CD player reads the dig­i­tal in­for­ma­tion, which is then trans­lated into sound. In con­trast, vinyl records were tra­di­tion­ally recorded us­ing ana­logue tech­nol­ogy, which repli­cates sound waves in the grooves of a record. The sound is trans­mit­ted through a nee­dle vibrating in a groove via a car­tridge to an am­pli­fier. The ma­jor ad­van­tage of dig­i­tal record­ing over ana­logue is that it elim­i­nates ex­tra­ne­ous noise. In ana­logue record­ing, a noise-re­duc­tion mech­a­nism is needed to min­i­mize hisses and crack­les. At a 1980 demon­stra­tion of the new prod­uct, renowned con­duc­tor Her­bert von Kara­jan de­clared that “all else is gaslight.” Eck­hardt-Gra­matté Hall, 8 p.m. Pi­anist play­ing Han­del, Cz­erny, Chopin and Schu­bert. Tick­ets $15 and $33 at 204-786-9000. Martha Wain­wright West End Cul­tural Cen­tre, 8 p.m. Tick­ets $25 ad­vance, $30 door or at jaz­zwin­nipeg.com, and 204-989-4656. GroundSwell: Aventa 8 p.m. Con­vo­ca­tion Hall, Univer­sity of Win­nipeg. Tick­ets $5 to $19 at the door

New York’s David Baskey­field plays the West­min­ster Or­gan Con­cert

Se­ries to­mor­row at 2:30 p.m. Tick­ets are $25 at the door.

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