In music, a simultaneity is more than one complete musical texture occurring at the same time, rather than in succession. This first appeared in the music of Charles Ives, and is common in the music of Conlon Nancarrow and others. Music is a form of entertainment or other human activity that involves organized and audible sounds and silence. ... In music, the word texture is often used in a rather vague way in reference to the overall sound of a piece of music. ... Succession is the act or process of pooing or of following in order or sequence. ... This photo from around 1913 shows Ives in his day job: he was the director of a successful insurance agency. ... Conlon Nancarrow (October 27, 1912 - August 10, 1997) was an American composer who took Mexican citizenship in 1955. ...

A pitch simultaneity is more than one pitch or pitch class all of which occur at the same time, or simultaneously. Simultaneity is a more general and specific term than chord: most chord progressions or harmonic progressions are then simultaneity successions, though not all simultaneity successions are harmonic progressions and not all simultaneities are chords. In music, pitch is the psychological correlate of the fundamental frequency of a note. ... In music and music theory a pitch class contains all notes that have the same name; for example, all Es, no matter which octave they are in, are in the same pitch class. ... Fingering for a first position C major chord on a guitar. ... A chord progression (also chord sequence and harmonic progression or sequence), as its name implies, is a series of chords played in an order. ... Harmony, Greek ἁρμονία harmonía meaning a fastening or join. The concept of harmony dates as far back as Pythagoras. ... In music and music theory a simultaneity succession is a series of different groups of pitches or pitch classes, each of which is played at the same time as the other pitches of its group. ...

See also

• musical set theory

Musical set theory is an atonal or post-tonal method of musical analysis and composition which is based on explaining and proving musical phenomena, taken as sets and subsets, using mathematical rules and notation and using that information to gain insight to compositions or their creation. ...

External link

• Simultaneity in Music by Robert Iolini. Extract from a Master of Arts thesis entitled Simultaneity in Music. Macquarie University. Sydney. Australia. February 1998.