The modal system worked like the scales of today, insomuch that it provided the rules and material for melodic writing. This system is called oktoechos and is also divided into eight categories, called echoi. Additionally, developments and differences between the medieval motet and the Renaissance motet will be explained. Thus, undisturbed by the theoretical writings from the pens of church-employed musicians, secular musical practice in the later Renaissance laid the foundations for the harmonic notions that were to dominate three centuries of Western art music. The placement of the sounds in time is the rhythm of a piece of music. Because music must be heard over a period of time, rhythm is one of the most basic elements of music. The vast majority of medieval music was monophonic in other words, there was only a single melody line. In each instance the structural outline was harmonically determined through juxtapositions of principal key areas acting as focal centres of tonality. Because the bass-oriented music of the 17th century relied primarily on chord progressions as fixed by the bass notes, it was structurally quite open-ended; i.e., the new technique suited any number of formal patterns. Leading composers of the later Middle Ages include Protin and WebThe Medieval Period of music is the period from the years c.500 to 1400. The tunes were primarily monophonic and transmitted by oral tradition. 2) Podatus consists of two notes (written with one on top of another). Sometimes the context of the mode would require a group of only two semibreves, however, these two semibreves would always be one of normal length and one of double length, thereby taking the same space of time, and thus preserving the perfect subdivision of the tempus. This gives plainchant a flowing, freedom that can be loosely described as having no rhythm. The 3 main types of organum are: Parallel organum (or strict organum) One voice sings the melody, whilst the other sings at a fixed interval this gives a parallel motion effect.
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