Rhythmic mode
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In medieval music, the rhythmic modes were set patterns of long and short durations. The value of each note is not determined by the form of the written note, but rather by its position within a group
Pérotin, "Alleluia nativitas", in the third rhythmic mode.
Pérotin, Viderunt omnes (Gradual for Christmas Day), in the first rhythmic mode. MS Florence, Biblioteca Medicea-Laurenziana, Pluteo 29.1, fol. 1 recto.
Musical notation
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Musical notation is any system used to visually represent music. Systems of notation generally represent the elements of a piece of music that are considered important for its performance in the conte
Rhythmic mode
…In medieval music, the rhythmic modes were set patterns of long and short durations (or rhythms). The value of each note is not determined by the form of the written note (as is the case with more recent European musical notation), but rather by its position within a group…
A photograph of the original stone at Delphi containing the second of the two Delphic Hymns to Apollo. The music notation is the line of occasional symbols above the main, uninterrupted line of Greek lettering.
Music notation from an early 14th-century English Missal
Early music notation in Latin, clearly marking neumes (date unknown, Florentian)
Jeongganbo musical notation system