Quasi-diatonic MOS notation: Difference between revisions
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Intervals are named analogously to diatonic: interval size classes are named with ordinal numbers starting from the scale step as the 2nd (i.e. they are 1-indexed). So a 2-step would be a third, a 3-step would be a fourth, etc. The exceptions are the 0-step (which is called the unison), and the equave (which takes the -ave suffix following a Latin number root indicating the scale step, to indicate that it is the equave - note that in a 2-note MOS, it is called the ''triave'', which is distinct from the ''tritave'' (a ratio of 3/1). A table of equave names will be available at the bottom of the page). (Note that these are not true Latin ordinals, unlike the corresponding Italian notation of ''ottava'' (see staff notation).) | Intervals are named analogously to diatonic: interval size classes are named with ordinal numbers starting from the scale step as the 2nd (i.e. they are 1-indexed). So a 2-step would be a third, a 3-step would be a fourth, etc. The exceptions are the 0-step (which is called the unison), and the equave (which takes the -ave suffix following a Latin number root indicating the scale step, to indicate that it is the equave - note that in a 2-note MOS, it is called the ''triave'', which is distinct from the ''tritave'' (a ratio of 3/1). A table of equave names will be available at the bottom of the page). (Note that these are not true Latin ordinals, unlike the corresponding Italian notation of ''ottava'' (see staff notation).) | ||
Generators are perfect, other intervals are major and minor (where major refers to the larger of the two interval sizes, and minor refers to the smaller of the two). Augmented and diminished, for interval names, function as # and b do for note names respectively. So in 5L3s (and in fact, in any MOS with >3 notes that is not an edo, due to the way the position of A in the scale is defined), A-C is a minor third, A-C# is a major third, and A-Cx is an augmented third. Augmented and diminished are also used to name the 1 imperfect generator interval of each class, depending on its size relative to the perfect generator. As such, in 5L3s, there are 7 perfect sixths and one augmented sixth. | Generators are perfect, other intervals are major and minor (where major refers to the larger of the two interval sizes, and minor refers to the smaller of the two). Augmented and diminished, for interval names, function as # and b do for note names respectively. So in 5L3s (and in fact, in any MOS with >3 notes and no consecutive small steps that is not an edo, due to the way the position of A in the scale is defined), A-C is a minor third, A-C# is a major third, and A-Cx is an augmented third. Augmented and diminished are also used to name the 1 imperfect generator interval of each class, depending on its size relative to the perfect generator. As such, in 5L3s, there are 7 perfect sixths and one augmented sixth. | ||
== Staves == | == Staves == | ||
| Line 306: | Line 306: | ||
|- | |- | ||
|perfect unison | |perfect unison | ||
| | | - | ||
| | |A | ||
|0c | |0c | ||
|- | |- | ||
|minor second | |minor second | ||
| | |s | ||
| | |Bb | ||
|114.29c | |114.29c | ||
|- | |- | ||
|major second | |major second | ||
| | |L | ||
| | |B | ||
|171.43c | |171.43c | ||
|- | |- | ||
| | |minor third | ||
| | |L+s | ||
| | |C | ||
|285.71c | |285.71c | ||
|- | |- | ||
| | |major third | ||
| | |2L | ||
| | |C# | ||
|342.86c | |342.86c | ||
|- | |- | ||
| | |diminished fourth | ||
| | |L+2s | ||
| | |Db | ||
|400.00c | |400.00c | ||
|- | |- | ||
| | |perfect fourth | ||
| | |2L+s | ||
| | |D | ||
|457.14c | |457.14c | ||
|- | |- | ||
| | |minor fifth | ||
| | |2L+2s | ||
| | |E | ||
|571.43c | |571.43c | ||
|- | |- | ||
| | |major fifth | ||
| | |3L+s | ||
| | |E# | ||
|628.57c | |628.57c | ||
|- | |- | ||
| | |perfect sixth | ||
| | |3L+2s | ||
| | |F | ||
|742.86c | |742.86c | ||
|- | |- | ||
| | |augmented sixth | ||
| | |4L+s | ||
| | |F# | ||
|800.00c | |800.00c | ||
|- | |- | ||
| | |minor seventh | ||
| | |3L+3s | ||
| | |Gb | ||
|857.14c | |857.14c | ||
|- | |- | ||
| | |major seventh | ||
| | |4L+2s | ||
| | |G | ||
|914.29c | |914.29c | ||
|- | |- | ||
| | |minor eighth | ||
| | |4L+3s | ||
| | |H | ||
|1028.57c | |1028.57c | ||
|- | |- | ||
| | |major eighth | ||
| | |5L+2s | ||
| | |H# | ||
|1085.71c | |1085.71c | ||
|- | |- | ||
| | |nonave | ||
| | |5L+3s | ||
| | |A | ||
|1200c | |1200c | ||
|} | |} | ||