Exploring the Concept of Microtones: A Closer Look at Fine-Grained Musical Interval Sizes
Exploring the World of Microtones: Expanding the Boundaries of Music
Microtones, musical intervals smaller than the conventional semitones of the 12-tone equal temperament system, have been a fascinating aspect of music for centuries. These pitches, existing outside the standard notes of a Western music scale, offer an expanded tonal palette beyond the familiar 12 pitches per octave [1].
Historically, microtonal intervals have been a staple in various musical traditions, particularly in the Middle East, India, and parts of Asia. For instance, Indian classical music employs a system of 22 Shrutis within an octave, enabling nuanced pitch expression and melodic elaboration that transcends 12-tone scales [3]. Similarly, Ottoman and Classical Turkish music involve rich microtonal maqam systems [2].
In the realm of Western classical music, microtonal experimentation gained prominence primarily in the 20th century. Composers like Paul Archbold, Harry Partch, and Mildred Couper began to explore alternative tuning systems and new sound worlds. Their compositions often feature quarter-tone scales or other equal divisions of the octave beyond twelve [1].
Innovators like Archbold developed theoretical frameworks, such as 24 equal divisions of the octave, and composed works utilizing quarter- and sixth-tone harmonies combined with extended instrumental techniques like multiphonics to explore new expressive possibilities [1].
Modern developments in microtonal music include the creation of specially designed or modified instruments capable of producing microtones. Microtonal guitars with adjustable frets, for example, enable performers to execute non-standard tunings across genres [2]. Contemporary music technology and notation methods have also adapted to represent and analyze these microtonal intervals more precisely.
Notable 20th-century composers who worked with microtones include Ivan Wyschnegradsky, who used the terms 'ultra-chromatic' and 'infra-chromatic' to refer to intervals smaller and larger than a semitone, respectively [1]. Marek Žabka and American composer Ivor Darreg also contributed to the field by introducing the terms 'subchromatic' and 'xenharmonic' to describe music using notes outside the standard notes of the modern piano [1].
The term 'microtone' was first coined by Maud MacCarthy in the early 20th century to describe notes with tiny intervals outside the standard Western music scale [1]. Julián Carrillo used the terms 'microtone' and 'microtonality' in 1895 to refer to music using notes outside the standard 12-note scale [1].
Despite not being a standard part of our daily music, microtones have found their way into popular music. Dua Lipa's 'Good in Bed', Nancy Sinatra's 'These Boots Are Made For Walking', Jet's 'Are You Gonna be my Girl', and King Gizzard and the Wizard Lizard's 'Rattlesnack' are examples of pop songs that incorporate microtones [1].
Music critic Alex Ross defines microtonal music as "music that uses intervals smaller than the semitone, or uses a tuning system other than the equal-tempered system that has been standard in Western music for the last couple of centuries" [1].
In conclusion, microtones have a rich history and have gradually influenced both classical and modern music, serving as a means of expanding tonal vocabulary and exploring cultural musical systems beyond the 12-tone equal temperament [1][2][3].
Integration of microtones in technology has led to the creation of microtonal guitars, enabling modern musicians to explore alternative tunings and push the boundaries of popular music.Experimentation with microtones in contemporary music technology and notations has elevated the precision of representing and analyzing these small intervals, reflecting the growing interest in expanding the limits of musical expression beyond traditional 12-tone scales.
