Col legno

A viola being played col legno.

Col legno performed on a violin: battuto (0 sec.), tratto (9), with tremolo (20), with glissando (33), and battuto with movement of the bow across the fingerboard (48).

In music for bowed string instruments, col legno, or more precisely col legno battuto (Italian pronunciation: [kɔl ˈleɲɲo batˈtuːto], Italian for "hit with the wood"), is an instruction to strike the string with the stick of the bow, rather than by drawing the hair of the bow across the strings.

Col legno is used in the final movement of the Piano Concerto No. 2 by Frédéric Chopin, which predates the more famous use in the "Dream of Witches' Sabbath", in the final movement of Berlioz's Symphonie Fantastique, in the score of the film Alien by Jerry Goldsmith, as well as in "Mars, the Bringer of War" from Holst's The Planets, the first movement of Mahler's Symphony No. 2, and Mussorgsky's Night on Bald Mountain. An early example can be found in Tobias Hume's "Harke, Harke." Another example is found in Shostakovich's Symphony No. 7 where the violins have a counter melody with the winds. Copland's Billy the Kid also has a great example in the Mexican dance to provide a joyful dance feeling to the music. The percussive sound of col legno battuto has a clear pitch element determined by the distance of the bow from the bridge at the point of contact. As a group of players will never strike the string in exactly the same place, the sound of a section of violins playing col legno battuto is dramatically different from the sound of a single violin doing so.

The wood of the bow can also be drawn across the string — a technique called col legno tratto ("drawn with the wood"). This is much less common, and the plain marking col legno is invariably interpreted to mean battuto rather than tratto. The sound produced by col legno tratto is very quiet, with an overlay of white noise, but the pitch of the stopped note can be clearly heard. If the sound is too quiet, the bow can be slightly rolled so that a few bow hairs touch the string as well, leading to a slightly less "airy" sound. Col legno tratto is used in the first and the third movements of Webern's Four Pieces for violin and piano, as well as in the opening of the second scene of Berg's opera Wozzeck.

Some string players object to col legno playing as it can damage the bow; many players have a cheaper bow which they use for col legno passages, or for pieces which require extended passages of col legno.^[1] Some players tap the strings with pencils instead of bows, producing a further percussive, lighter sound.

References

Extended techniques General Glissando Multiphonic Percussion Bowing Bowed strings Col legno Harmonics Other strings Luthéal Piano extended technique Prepared guitar Prepared harp Prepared piano String piano Tack piano Winds Circular breathing Flutter-tonguing Growling Split tone Slap tonguing Voice Screaming Sprechstimme

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