Editing Double stop

{{Short description|Playing two strings at once on an instrument}}
{{Image frame|content=<score sound="1" override_midi="Breval - Sonata cello double stops.mid">
    \relative c {
        \time 4/4
        \clef bass
        \tempo "Allegro"
        <g e' c'>2 \f \downbow <g d' b'> \downbow
        <c, g' e' c'>2. \downbow
    }
</score>|width=300|caption=Cello triple and quadruple stops from the opening of [[Jean-Baptiste Bréval]]'s Sonata in C major for cello and piano}}

[[File:Multiplestop-einekleine.PNG|upright=1.5|thumb|The beginning of [[Mozart]]'s ''[[Eine kleine Nachtmusik]]'' (1787). The first and second violins have a triple stop notated. The low D is to be bowed only briefly and left to ring. Shortly afterwards, B and G are played normally.]]
In music, a '''double stop''' is the technique of playing two notes simultaneously on a [[String instrument|stringed instrument]] such as a [[violin]], a [[viola]], a [[cello]], or a [[double bass]]. On instruments such as the [[Hardanger fiddle]] it is common and often employed. In performing a double stop, two separate strings are bowed or plucked simultaneously. Although the term itself suggests these strings are to be fingered (stopped), in practice one or both strings may be open.

A triple stop is the same technique applied to three strings; a quadruple stop applies to four strings. Double, triple, and quadruple stopping are collectively known as multiple stopping.
{{listen|type=music|filename=Mozart - Eine kleine Nachtmusik - 1. Allegro.ogg|title=''Eine kleine Nachtmusik'': I.&nbsp;Allegro|description=Performed by the Advent Chamber Orchestra. Notice the triple stop in the violins at the first chord.}}

Early extensive examples of the double stop and string chords appear in [[Carlo Farina]]'s ''Capriccio Stravagante'' from 1627, and in certain of the sonatas of [[Biagio Marini]]'s [[Opus number|Op.]] 8 of 1629.

==Bowing==
On instruments with a curved [[bridge (instrument)|bridge]], it is difficult to [[Bow (music)|bow]] more than two strings simultaneously. Early treatises make it clear that [[composer]]s did not expect three notes to be played at once, even though the notes may be written in a way as to suggest this. Playing four notes at once is almost impossible. The normal way of playing three or four note chords is to sound the lower notes briefly and allow them to ring while the bow plays the upper notes (a [[broken chord]]). This gives the illusion of a true triple or quadruple stop. In [[Dynamics (music)|forte]], however, it is possible to play three notes at once, especially when bowed toward the [[fingerboard]]. With this technique more pressure than usual is needed on the bow, so this cannot be practiced in softer passages. This technique is mainly used in music with great force, such as the [[cadenza]]-like solo at the beginning of the last movement of [[Tchaikovsky]]'s [[Violin Concerto (Tchaikovsky)|violin concerto]].

===Bach bow===
The "Bach bow" with its arched back uses a system of levers to slacken or tighten bow hair immediately while playing so as to (according to its advocates) facilitate the performance of polyphonic music. Such a bow was conceived early in the 20th century by [[Arnold Schering]] and Albert Schweitzer and constructed by Rolf Schröder in 1933.<ref>David D. Boydon (2001), ''[[New Grove Dictionary of Music]]'', "Bow", ed. [[Stanley Sadie]].</ref> A similar device called the "Vega bow" was built in 1954 under the sponsorship of the violinist [[Emil Telmányi]].<ref>''Oxford Dictionary of Music'', "Telmányi", Oxford University Press.</ref> Neither of these bows bears any particular relation to historical [[baroque music|Baroque]] bows and neither has ever been widely employed. In 1990, German cellist [[Michael Bach (musician)|Michael Bach]] invented a curved bow for cello, violin, viola and bass.<ref>[[Michael Bach (musician)|Michael Bach]]: ''Fingerboards & Overtones, Pictures, Basics and Model for a New Way of Cello Playing'', Edition Spangenberg, Munich 1991, {{ISBN|3-89409-063-4}}.</ref> He named it "BACH.Bogen" (BACH.Bow) after his own name.

===Notation===

In longer three-note or four-note chords, either the top note or the top two notes are sustained after the lower notes have been played as grace notes.<ref>[[Walter Piston]] (1955), ''Orchestration'', W. W. Norton, 55.</ref> Sometimes the noteheads for the lower notes are filled in to show they are of short duration while the noteheads for the notes to be held are left open. This notation occurs, for example, at the beginning of the fourth movement of [[Beethoven's fifth symphony]].<ref>Ludwig van Beethoven, ed. [[Elliot Forbes]] (1971), ''Symphony No. 5 in C minor, Norton Critical Scores'', W. W. Norton, 68.</ref>

Simultaneous notes in a single part for an orchestral string section may be played as multiple stops or the individual notes may be distributed among the players within the section. Where the latter is intended, ''[[divisi]]'' or ''div.'' is written above the staff.<ref>[[George Heussenstamm]] (1987), ''The Norton Manual of Music Notation'', W. W. Norton, 117.</ref>

==Plucking==
[[Guitar]] double stops are commonly used in [[rock music|rock]], [[blues]], [[heavy metal music|metal]], and [[jazz]] music.<ref name="agt">{{cite web |title=Guitar Double Stops: What they are and how to play them |url=https://appliedguitartheory.com/lessons/guitar-double-stops/ |website=Applied Guitar Theory |access-date=5 November 2022 |date=9 November 2021}}</ref> They are often played by [[fingerstyle guitar|fingerpicking]] or [[hybrid picking]], but can also be [[strum|strummed]], or executed with [[hammer-on]]s or [[pull-off]]s. [[Jimi Hendrix]] was especially known for utilizing double stops on the guitar.<ref name="agt"/>

When three or more notes are played simultaneously on a [[plucked string instrument]], it is simply called a [[chord (music)|chord]] rather than a triple stop or quadruple stop.

== Marching percussion ==
Double stops are commonly used in [[marching percussion]] writing. In the case of the snare, a double stop is when a drummer hits the drum with both hands at the same time, while the tenors hit 2 drums at once. These are usually notated with either single note or a stacked note. A double stop will have the letter B written under the note for sticking.

== See also ==
{{portal|Music}}
* [[Glossary of music terminology]]

==References==
{{reflist}}

{{Violin family}}

[[Category:String performance techniques]]
[[Category:Extended techniques]]