Hello all. I believe the symbol is used in jazz charts to signify that the number of repeats of the section enclosed by the brackets is not determined prior to performance.
On Wed, Mar 2, 2011 at 8:01 AM, Voyageur Galactique < voyageur.galacti...@gmail.com> wrote: > I found this symbol in the following french music theory reference : > > Théorie de la musique, A. Danhauser, edition 1996 > pages 159 and 160 > > see attached scanned excerpts. (please don't discard it on the mailing > list) > > quick translation : > > ** p159 ** > "Durant un temps déterminé ... " > -->During a specified time, instrumentist may have to repeat a pitch > or a melodic phrase, each time as fast as possible. > > "On trouve également un autre symbole ..." > There is another symbol to indicate the repetition of a group of > pitches, out of tempo. > > "Ici, le trait est répété ..." > here the enclosed melodic figure has to be played nonstop during two > measures up to F sfz. > > ** p160 ** > "Ce symbole signifie" > This symbol means indicated pitches have to played in a so-called "ad > libitum" order (any order you decide) that must be renewed each time. > Duration of pitches are often textually indicated. > examples : > "play these pitches with a long or a very long duration value" > or > "play these notes by groups of 2, 3 or 4 with very short durations" > -- Richard Opheim Home: 425-486-5421 Cell: 425-381-9213
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