Positions

The placement of the left hand on the fingerboard is characterized by "positions". First position, where most beginners start (some methods start in third position) is nearest to the nut, or scroll end, and furthest from the player's face. The lowest note available in this position in standard tuning is an open G; the highest notes in first position are stopped with the fourth finger on the E-string, sounding a B.

Thus, in first position, the first finger placed on the E-string gives an F♯; from this position, the second finger can play a G or a G♯, the third finger an A, and - as previously mentioned - the fourth a B. Positioning the first finger so when pressed it gives a G (still on the E-string) is called second position, from which position all the ascending notes up to C (by the fourth finger) may be played. Third position is achieved when the first finger presses down on an A, and so on, with fifth position on one string sounding the same notes as first position on the string above. There is also a "half position" where the first finger sounds a semitone above the open string and the other fingers a tone or semitone below their normal positions, e.g. (on the A string) A♯-B-C♯-D. The same notes could be played in first position with the first finger moving from "low first" (A♯) to B, but this would produce a sliding first finger, which is not always desirable.

The upper limit of the violin's range is largely determined by the skill of the player. A skilled player can play more than two octaves on a single string, and four octaves on the instrument as a whole. All except the lowest and highest notes can be played on multiple strings in different positions. That is, the "high" B note referred to above can be played not only by the fourth finger on the E-string in first position, but also by the fourth finger in fifth position on the A-string, in ninth position on the D-string, and in thirteenth position on the G-string.

Violinists often change positions on the lower strings, sometimes to the consternation of composers and much to the confusion of beginners. This is usually done to handle a musical passage which would otherwise require fast switching (or "crossing") of strings. It is also done to produce a particular timbre: the same note will sound substantially different depending on which string is used to play it. That "high" B, when played on the E-string (the highest, usually a mono-core metal string) can have a clear, even piercing timbre; the same "high" B played on the A-string or D-string or G-string (usually wrapped strings rather than mono-core) may sound "warmer" or less abrasive. For this reason violinists often avoid playing a single note on the E-string within a phrase of notes on the A-string, as one E-string note would stand out with a different timbre.

Different strings have different tone qualities, because of their different physical composition and their different resonances on the instrument. The choice of timbres on different strings is vital to the musicality of the instrument, and intermediate and advanced players will often deliberately play in a higher position on a lower string for effect. This effect is sometimes indicated by the composer or arranger. The most common indication uses the letter name of the string: for example, if a composer wants a passage that would otherwise be taken on the D-string to be played on the G-string, they write "sul G" or "G Saite" or "auf G" or "G corde" (or simply, "on G") in the part. Occasionally, numbers or roman numerals are used, so the example might be written "4. corde" or "IV corde" (as above, with the highest string being No. 1 and the lowest No. 4); the simplest way to indicate which string to play is to write the number (e.g., "IV" or "III") alone.

Open strings

Violin open string notes. Play^ⓘ

A special timbre results from playing a note without touching its string with a finger, thus sounding the lowest note on that string. Such a note is said to be played on an open string. Open string notes (G, D, A, E) have a very distinct sound resulting from absence of the damping action of a finger, and from the fact that vibrato (see below) is produced differently from on fingered notes. Other than low G (which can be played in no other way), open strings are sometimes selected for special effects.

One striking effect that employs open strings is bariolage. This is the repeated alternation of notes played on two or more strings, where one of the notes is usually an open string. This string crossing is often rapid, and is best executed with a sinuous movement of the bow arm. Sometimes the same pitch as an open string will be fingered on an adjacent string, so that the alternation is between the same note on two strings, one stopped, one open, giving a rhythmic pulsating effect. Bariolage was a favorite device of Joseph Haydn, who used it for example in his string quartet Opus 50 no. 6, and in the "Farewell" Symphony. It is also prominently featured in the Preludium of Bach's Partita No.3 in E major for solo violin.

Playing an open string simultaneously with a stopped note on an adjacent string produces a bagpipe-like drone, often used by composers in imitation of folk music. Sometimes the two notes are identical (for instance, playing a fingered A on the D string against the open A string), giving a ringing sort of "fiddling" sound.

Double stops and drones

Double stopping is when stopped notes are played on two adjacent strings, producing a two-note harmony. This is more difficult than normal single-string playing, as fingers must be accurately placed on two strings simultaneously. Sometimes moving to a higher position is necessary for the left hand to be able to reach both notes at once. Double stopping is also used to mean playing on three or all four strings at once, although such practices are more properly called triple or quadruple stopping. Collectively, double, triple and quadruple stopping is called multiple stopping. However, triple or quadruple stopping is more commonly just called a chord. Sounding an open string alongside a fingered note is another way to get a harmony. While sometimes also called a double stop, it is more properly called a drone, as the drone note (the open string) may be sustained for a passage of different notes played on the adjacent string.

Vibrato

Vibrato is a technique of the left hand and arm in which the pitch of a note varies in a pulsating rhythm. Mechanically, it is achieved by fingertip movements which alter the length of the vibrating string. There are several different styles of vibrato ranging from the use of just the fingers, to the use of the wrist or even the whole forearm. By employing these different techniques both the speed and amplitude of vibrato oscillations can be varied for musical effect.

Vibrato is often perceived to create a more emotional sound, and it is employed heavily in music of the Romantic era. The acoustic effect of vibrato has largely to do with adding interest and warmth to the sound, in the form of a shimmer created by the variations in projection of strongest sound. A well-made violin virtually points its sound pattern in different directions depending on slight variations in pitch.

Violinists oscillate backwards, or lower in pitch from the actual note when using vibrato, since aural perception favors the highest pitch in a varying sound. Vibrato does little if anything to disguise an out-of-tune note. Violin students, especially of beginner level, are taught to use it only on extended notes and or during points of emotional tension. Vibrato can be difficult to learn and may take a student several months, if not years, to master.

Harmonics

Lightly touching the string with a fingertip at a harmonic node while bowing close to the bridge can create harmonics. In order for the harmonics to produce the most consistent tone and volume, the bow needs to be making longer faster strokes. Instead of the normal solid tone a wispy-sounding overtone note of a higher pitch is heard. Each node is at an integer division of the string, for example exactly halfway along the length of the string, or exactly one-third along the length of the string. The pitch produced in these two cases will be an octave higher in the case of halves, and an octave and a fifth higher in the case of the string vibrating in thirds. A responsive instrument will provide numerous possible harmonic nodes along the length of the string.

Harmonics are marked in music with a little circle above the note that determines the pitch of the harmonic. There are two types of harmonics: natural and artificial (also known as "false harmonics").

Artificial harmonics are more advanced than natural harmonics described above. Stopping a note on one string, for example first finger "E" on the D string, and having another finger just touching the string a fourth higher, in this case on the position of the note "A", produces the fourth harmonic of the "E", sounding a tone two octaves above the note that is stopped, in this case, E. Finger placement and pressure, as well as bow speed, pressure, and sounding point are all essential in getting the desired harmonic to sound.

The "harmonic finger" can also touch at a major third above the pressed note, or a fifth higher. These harmonics are less commonly used because they are more difficult to make sound well. In the case of the major third, the harmonic is higher in the overtone series, and does not speak as readily; in the case of the fifth, the stretch is greater than is comfortable for many violinists. The sounding pitch of the major third harmonic is two octaves and a major third above the lower note, and in the case of the fifth, it is an octave and a fifth above the lower note.

Traditional notation of artificial harmonics uses two notes on one stem: the lower note employs a round note-head representing where the string is strongly stopped with the first finger, and the upper note uses an open diamond note-head representing where the string is lightly touched with the fourth finger.

Harmonics are also rarely played in double stops, where both notes are harmonics.

Elaborate passages in artificial harmonics can be found in virtuoso violin literature, especially of the 19th and early 20th centuries.

Bowing techniques

Increasing pressure on the strings is the primary way to produce louder notes on the violin. Pressure is added mainly by the index finger of the bowing hand. Another method sometimes used to increase volume is using greater bow speed; however, a violinist can increase bow speed and still play softly at the same time. The two methods are not equivalent, because they produce different timbres; pressing down on the string tends to produce a focused, more intense sound.

The sounding point where the bow intersects the string also influences timbre. Playing close to the bridge (sul ponticello) gives a more intense sound than usual, emphasizing the higher harmonics; and playing with the bow over the end of the fingerboard (sul tasto) makes for a delicate, ethereal sound, emphasizing the fundamental frequency. Suzuki referred to the sounding point as the "Kreisler highway"; one may think of different sounding points as "lanes" in the highway.

There are several methods of "attack" with the bow that produce different articulations; this list is by no means exhaustive:

• Détaché - The term détaché simply means "separated" and it can be applied to any notes not linked by a slur. Stopping the bow on the string deadens the vibrations and thus creates a muted accent, elastic détaché which covered off-the-string strokes, and dragged détaché (détaché traîné) where smooth bow changes leave no audible gap between each note.^[4]
• Martelé (French; Italian martellato) - literally "hammered," is a type of détaché stroke with a lightly hammered attack. A strong attack is referred to as martellato.
• Collé - "stuck," or "glued," is a stroke that begins from a heavily weighted bow resting motionless on the string. Ideally, the initial weight will be almost enough to cause an undesirable scratch sound.^[5]
• Spiccato - Technique that uses a bowing style that leaves the string clearly to produce a light "bouncing" sound. Despite major misconceptions, violinists play this technique with a horizontal stroke; the "bouncing" motion is only due to the natural resistance of the violin string, resistance of the bow hair, and light weight of the stroke. Spiccato becomes sautillé at faster tempos, due to the lower amplitude of the "bounce". Spiccato is usually performed at the balance portion of the bow, which is the area of the bow where weight is distributed evenly on both sides, allowing for maximum control. Spiccato articulation is indicated by a small triangle directly under the note. Alternatively, spiccato can be indicated by a small dot under the note in conjunction with the word "spiccato".
• Legato - Of successive notes in performance, connected without any intervening silence of articulation. In practice, the connection or separation of notes is relative, and achieved through the presence or absence of emphasis, Accent and attack, as much as silences of articulation; degrees of connection and separation vary from legatissimo (representing the closest degree of connection), tenuto, portamento, legato, portato, non legato, mezzo-staccato, staccato (the natural antonym of legato), to staccatissimo. Some of these terms have connotations going beyond simple degrees of connection or separation.
• Sautillé (French; Italian saltando, German Springbogen, Spanish saltillo) - A bowstroke played rapidly in the middle of the bow, one bowstroke per note, so that the bow bounces very slightly off the string. If the bounce becomes higher at this speed, it is really a flying staccato or flying spiccato. It is not indicated in any consistent manner: sometimes dots are placed above or below the notes, sometimes arrow-head strokes, and sometimes the stroke is simply left to the performer's discretion. spiccato and sautillé are sometimes used as synonyms, though spiccato tends to be applied to a broader range of off-the-string strokes.^[6]
• Jeté - Also known as "ricochet" bowing, this consists of "throwing" the bow on the string in the upper third of the bow on a down bow, so that it bounces and produces a series of rapid notes. Usually from two to six notes are sounded this way, but up to ten or eleven can be played. This technique was especially important among nineteenth-century virtuosi, particularly Paganini.^[7]
• Louré (French; Italian portato) - This bow stroke, used in slow tempos, separates slurred notes slightly to articulate them, without stopping the bow.^[8] It is used in passages of a cantabile character.
• Arpeggio, arpeggiando, arpeggiato - A bouncing stroke, played on broken chords, so that each note of the arpeggio is played on a different string.
• Tremolo - Chiefly used for orchestral playing, this consists of moving the bow back and forth in very short strokes extremely rapidly, not in precisely measured rhythm (usually at upper half of the bow).
• Col legno - Occasionally the strings are struck with the stick of the bow ("with the wood.") This gives a muted percussive sound, and is most effective when employed by a full orchestral violin section. The eerie quality of a violin section playing col legno is exploited in some symphonic pieces, notably "Mars, the Bringer of War" of The Planets Suite by Holst as well as Frederic Chopin's Warsaw-era Piano Concerto No. 2, which predates it.
• Shuffle - A repetitive pattern of slurs and accents, much used in some fiddling styles. Named shuffles include the Nashville shuffle, the Georgia shuffle, and the double shuffle, which is often considered to be a trick or show-off shuffle.
• Chopping - A more modern percussive technique, in which the hair near the frog of the bow is struck against the strings with a quick scratching sound of indeterminate pitch. It is used predominantly by bluegrass musicians to replicate the off-beat chop of the mandolin however more recently the technique has been embellished by musicians such as Casey Driessen, Darol Anger, and Rushad Eggleston creating cyclical chops and triple chops. Chopping features as a mainstay of many bands arrangements such as Crooked Still, Teho and Turtle Island String Quartet.

Straight bow

No matter which attack or bow stroke is used, most professional violinists use a straight bow stroke, keeping the bow perpendicular to the string and parallel to the bridge. This ensures that the bow will stay in the desired sounding point and will create a consistent sound quality.^[9] One technique to achieving a straight bow is as follows. When taking a downbow, focus on the upper arm, the lower arm, and the hand/wrist. First, move the upper arm backwards as if elbowing someone in the nose. Next, follow through with the lower arm. Near the end of the bow stroke, rotate the wrist and hand as if opening a jar of peanuts. When used correctly, these motions will create a straight downbow bow stroke. A crucial step is to watch the bow and make sure it remains straight. An upbow is created in the opposite way. Still keeping an eye on the bow, move the lower arm in the direction that it came. Follow through with the upper arm. Near the end of this stroke, rotate the hand and wrist as if closing a jar of peanuts.

There is, however, another school of bowing, popularized by violin pedagogue Ivan Galamian, in which the bow is kept at a slight angle to the bridge. When the player draws a down bow, he is to move his right hand gradually away from his body; when he draws an up bow, towards his body. According to proponents of this style, these slight angles help create greater contact with the bridge and thus produce a fuller sound.

Pizzicato

When a note is marked pizz. (abbreviation for pizzicato) in the written music, it is played by plucking the string with a finger of the right hand rather than by bowing. When the bow hand is occupied (or for virtuosic effect) the left hand can be used; this is indicated by a "+" (plus sign) in the music. This allows players to simultaneously play bowed notes while plucking on a different string. In addition, some players have acquired the trick of playing fast pizzicato passages using two alternating fingers of the right hand. Players continue playing pizzicato until there is an indication to return to arco (playing with the bow).

There are two common positions for playing pizzicato. One is to clench the bow in the right hand, rest the right thumb on the right side of the finger board, then pluck the string. This position can enhance the tonal quality of the pluck and can reduce fatigue during long durations of plucking. Another pizzicato position is to maintain the bow grip, then pluck the strings with the right index finger. This position is especially helpful when the composer alternates between series of arco and pizzicato notes, because it allows the violinist to quickly and accurately switch styles.

Violinists may also pluck a string with their left hand, denoted on written music as a "+" symbol above the note desired. Left-handed pizzicato is generally less flexible pitch-wise than the right-handed technique, but allows the right hand to either stay where it is or simultaneously play, a technique composer and violinist Niccolo Paganini was renowned for.

A snap pizzicato, first specified by Gustav Mahler, but often called a Bartók pizzicato since Béla Bartók was the first to use the technique extensively, requires the player to pull the string away from the fingerboard so that when it is released it rebounds with force onto the fingerboard, yielding a sharp, percussive snapping sound. Examples can be found in Bartók's 44 Duos (No. 42, Arabian Song) and Solo Sonata for violin. .