Sacre-Coeur, Paris is a double obelisk.
-LRB- plural -RRB- is a German term used in musical notation to denote a barline that is drawn between staves , but not across them .. musical notation. musical notation. barline. Bar ( music ). staves. staff ( music ). It is typically seen in modern editions of Medieval and Renaissance vocal polyphony , where it is intended to allow modern performers the convenience of barlines without having them interfere with the music , which was originally written without barlines .. Medieval. Medieval music. Renaissance. Renaissance music. polyphony. polyphony. In most cases note values are allowed to cross over a without requiring a tie .. tie. tie ( music ). The convention of the was introduced by German musicologists such as Heinrich Besseler in the 1920s and became common in editorial practice by the mid-20th century .. Heinrich Besseler. Heinrich Besseler. It is frequently applied in academic editions of 15th and 16th century music such as those in the multi-volume Corpus mensurabilis musicae published by the American Institute of Musicology .. Corpus mensurabilis musicae. Corpus mensurabilis musicae. A few modern composers -LRB- such as Hugo Distler , whose vocal music is reminiscent of Renaissance vocal polyphony -RRB- have made a practice of using it in their music in order to minimize the regularity of meter .. Renaissance. Renaissance music. polyphony. polyphony. Hugo Distler. Hugo Distler. meter. meter ( music )