Strum
Way of playing a stringed instrument
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Strums are often contrasted with plucking, as a means of vibrating an instrument's strings. In plucking, a specific string or designated set of strings are individually targeted to vibrate, whereas in strumming, a less precise targeting is usually used. Compared to other plucking techniques, any group of strings brushed in a single sweep by a plectrum could be considered a strum due to the plectrum's less precise string group targeting (however, a plectrum might simultaneously pluck a small group of strings without being considered a strum). In contrast, a musician could utilize a technique with more precise string group targeting (such as a fingerstyle or fingerpick technique) to pluck all the strings on a stringed instrument at once and this would still be considered a pluck, not a strum.
Notation
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Strumming patterns
A strumming pattern or strum is a preset pattern used by a rhythm guitar. For example, a pattern in common time or 4
4 consisting of alternating down and up eighth note strokes may be written:
- 1&2&3&4&
- dudududu
Rock and pop
The pattern most typical of rock and related styles is:
- 1&2&3&4&
- d du udu
The final upstroke is sometimes omitted altering the strumming pattern slightly to d du ud. This pattern is often called "Old Faithful", or when played on ukulele, the "Island Strum".
Examples of other strumming patterns include:
- Single down strum: d d d d
- Elvis' "Burning Love"
- Kathy Mattea's "What Could Have Been"
- Boom-chicka: d dud du
- Merle Haggard's "Silver Wings"
Jazz and funk
The simple four-to-a-bar rhythm is associated with jazz guitarists such as Freddie Green, although they may subtly vary the rhythm of a chord on some beats to add interest.
A simple eight-to-a-bar (8 eighth notes) rhythm is known as "straight eights" as opposed "swung eights", in which each pair are played in a rhythm that resembles the first and third notes in a triplet.
The fretting hand can also mute the strings on the fretboard to damp a chord, creating staccato and percussive effects. In reggae and ska, a few staccato "chops" are played per bar. In funk rhythm playing, the strumming hand keeps a fairly steady motion in 16th notes, while the left hand, basically holding down a jazz chord damps some of them in a syncopated pattern.
Fingerstyle strumming strokes
Some of the many possible fingerstyle strums include
- A slow downstroke with the thumb. This is a sforzando or emphatic way of playing a chord.
- Light "brushing" strokes with the fingers moving together at a near-perpendicular angle to the strings. Works equally in either direction and can be alternated for a chord tremolo chord effect.
- Upstrokes with one finger make a change from the standard downstroke strum.
- A "pinch" with the thumb and fingers moving towards each other gives a crisp effect. It is helpful to clearly articulate the topmost and bass note in the chord, as if plucking, before "following through".
- Rasgueado: Strumming is typically done by bunching all the right-hand fingers and then flicking them out in quick succession to get four superimposed strums. The rasgueado or "rolling" strum is particularly characteristic of flamenco.
- Turning p-a-m-i tremolo plucking into a series of downstrokes. This is a lighter version of the classic rasgueado, which uses upstrokes.