where did the term break a leg originate
Break a leg Urbane Irish nationalist Robert Wilson Lynd published an article, "A Defence of Superstition", in the 1 October 1921 edition of the New Statesman, a British liberal political and cultural magazine. Lynd regarded the theatre as the second-most superstitious institution in England, after horse racing. In horse racing, Lynd asserted, to wish a man luck is considered unlucky, so "You should say something insulting such as, 'May you break your leg!'"[6] Lynd did not attribute the phrase in any way to theatre people, though he was familiar with many of them and frequently mingled with actors backstage.
Turntablism To understand the significance of this achievement, it is important to first define the "break." Briefly, the "break" of a song is a musical fragment only seconds in length, which typically takes the form of an "interlude" in which all or most of the music stops except for the percussion. Kool Herc introduced the break-beat technique as a way of extending the break indefinitely. This is done by buying two of the same record, finding the break on each record, and switching from one to the other using the DJ mixer: e.g., as record A plays, the DJ quickly backtracks to the same break on record B, which will again take the place of A at a specific moment where the audience will not notice that the DJ has switched records. Using that idea, Grandmaster Flash elaborated on Kool Herc's invention of break-beat DJing and came up with the quick-mix theory, in which Flash sectioned off a part of the record like a clock.[13] He described it as being "...like cutting, the backspin, and the double-back." [14]