Multiphonic Totally Explained

Everything about Multiphonic totally explained

Multiphonics are an extended technique in instrumental music in which a monophonic instrument (one which generally produces only one note at a time) is made to produce several notes at once. Multiphonics in wind music are primarily a 20th century technique, first explicitly called for in the Sequenza for solo flute by Luciano Berio and Proporzioni for solo flute by Franco Evangelisti, though the brass technique of singing while playing has been known since the 18th century and used by composers such as Carl Maria von Weber. Commonly, no more than four notes will be produced at once, though for some chords on some instruments it's possible to get several more.

Technique

Woodwind instruments

On woodwind instruments for example- saxophone, clarinet, oboe and flute- multiphonics can be produced either with new fingerings, by using different embouchures, or voicing the throat with conventional fingerings. There have been numerous fingering guides published for the woodwind player to achieve harmonics. Multiphonics on reed instruments can also be produced in the manners described below for brass instruments.
It is said to be impossible to recreate exactly the conditions between one player and the next, due to minute differences in instruments, reeds, embouchure, and other things. This, however, isn't entirely true; the multiphonic will depend on the room temperature and other such things, but essentially multiphonics sound the same due to the harmonic structure of the multiphonic. A multiphonic fingering that works for one player may not work for that same player on a different instrument, or a different player on the same instrument, or even after switching reeds. The tone quality of brass multiphonics is influenced strongly by the voice of the player.

Brass instruments

In brass instruments, the most common method of producing multiphonics is by simultaneously playing the instrument and singing into it. When the sung note is part of the overtone series of the played note, a third note that's the sum of the frequencies of the sung note and the played note is produced; a difference between them is also produced, leading to the popular term trumpet/trombone/horn growl. This technique is also called "horn chords". (Singing while playing is also possible for flute and recorder, though not as common.) Another method is referred to as "lip multiphonics", in which a brass player alters the airflow to blow between partials, in the harmonic series of the slide position/valve. The outcome is just as stable as any multiphonic and perfectly structured. When the frequencies add together or subtract from each other (essentially merge), the fundamental is recreated. For example; A 440 and A 220, this would combine to make 660. Creating a new fundamental of the second lowest B of the piano.

String instruments

String instruments can also produce multiphonic tones when strings are divided in two pieces. The most well-known technique is playing flaegolet tones on a guitar. Other multiphonic extended techniques used are prepared piano and prepared guitar.

Vocal multiphonics

The technique of producing multiphonics with the voice is called throat singing.

How multiphonics work

In general, when playing a wind instrument, the tone that comes out consists of the fundamental—the pitch usually identified as the note being played—as well as pitches with frequencies that are integer multiples of the frequency of the fundamental. (Only pure sine wave tones lack these overtones.) Normally, we perceive only the fundamental pitch as being played.
By controlling the air flow through the instrument and the shape of the column (by changing fingering or valve position), a player may produce two distinct tones not part of the same harmonic series, and thus perceive them independently.

Notation

Multiphonics may be notated in score in a variety of ways. When exact pitches are specified, one method of notation is simply to indicate a chord, leaving the performer to figure out what techniques are necessary to achieve it. Common on woodwind music is to specify a particular fingering underneath the required note; as different fingerings produce different qualities of sound, a composer who is concerned about the precise effect created may wish to do this. Approximate pitches may be specified by wavy lines or in cluster notation to designate acceptable ranges of sound. There is, however, a wide range of notation used to designate multiphonics, with several individual composers preferring notations not in common use.

Use in literature

The first real use of multiphonics in literature are of the brass "horn chord" style. Carl Maria von Weber used this technique in his horn literature; it was used in the 18th century.
   Woodwind multiphonics and brass lip multiphonics didn't make appearances in classical music until the 20th century, with pioneering compositions such as Luciano Berio's Sequenzas for solo wind instruments using them extensively.
   However, usage in jazz predates this, having been used as early as the 1940s, with Illinois Jacquet an early proponent of the practice. Multiphonics were also widely used by John Coltrane, and jazz flutist Jeremy Steig uses multiphonics extensively.
   Some composers who use multiphonics are:

Some musicians who use multiphonics are:

Conny Bauer - trombone

Vinko Globokar - trombone also composition

Robin Eubanks - trombone

Frank Gratkowski - saxophone

Heinz Hollinger - oboe

Theo Jörgensmann - clarinet

Albert Mangelsdorff - trombone

Nat McIntosh - Tuba

Milenko Stefanovic - clarinet

Øystein Baadsvik - tuba

Aengus O Maolain - singer

Michael Brecker - tenor saxophone Further Information

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