Trachytonic: Difference between revisions
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Beginning to phase out "screamapillar" |
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{{Idiosyncratic terms}} | {{Idiosyncratic terms}} | ||
'''Trachytonic''', the 7-note MODMOS LLmmLLs, and the temperament which characterizes this scale, is also called '''"screamapillar"''', though this name is heavily disliked. Trachytonic is usually tuned in 17edo (that is, 3322331). Trachytonic is not a maximally even scale (since seconds, thirds, sixths, and sevenths all come in three rather than two sizes). However, trachytonic is notable for being [[Rothenberg_propriety|strictly proper]], whereas the 17edo diatonic scale is not proper at all, and the 12edo diatonic scale is proper but not strictly so. | |||
Screamapillar can be obtained by a single chromatic modification of the diatonic scale; if we take 17edo's diatonic major (Ionian) mode, and raise the fourth by one step, we get screamapillar | Screamapillar/trachytonic can be obtained by a single chromatic modification of the diatonic scale; if we take 17edo's diatonic major (Ionian) mode, and raise the fourth by one step, we get screamapillar. Screamapillar is also one modification away from the [[Mohajira|rast]] scale, so it has resemblance to both Western and Middle-Eastern scales. In fact, melodically, it corresponds to the [http://www.maqamworld.com/maqamat/bayati.html bayati] maqam. | ||
The name "screamapillar" comes from an analogy with [[Scorp|scorp]] (as both names are related to arthropod creatures starting with "sc", which in this case is a reference to a character from the Simpsons TV show), and also because the major fourth of 17edo (which functions as 11:8, among others) has a very bright sound as though it is "screaming"'; ambulance sirens often use similar intervals. Timbres where the eleventh harmonic is strong tend to take on a similar character. | |||
The name "trachytonic" comes from the Greek "trachys", meaning "rough". | |||
The sharpened fourth could also be called a "red note" (opposite of a blue note) due to the mood it creates. Also, the ''[https://en.wikipedia.org/wiki/The_Simpsons_Theme Simpsons theme]'' uses a scale which, although not exactly screamapillar, does contain a sharpened fourth. | The sharpened fourth could also be called a "red note" (opposite of a blue note) due to the mood it creates. Also, the ''[https://en.wikipedia.org/wiki/The_Simpsons_Theme Simpsons theme]'' uses a scale which, although not exactly screamapillar, does contain a sharpened fourth. | ||
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Other high-limit chords and tone clusters can also be realized in screamapillar, including the approximations of 8:9:11:12 (which is like a sus chord but with more tension) and 12:13:14:16:18. | Other high-limit chords and tone clusters can also be realized in screamapillar, including the approximations of 8:9:11:12 (which is like a sus chord but with more tension) and 12:13:14:16:18. | ||
The modes of screamapillar | The modes of screamapillar are as follows: | ||
''' | '''Lydian d4'''. 3 3 2 2 3 3 1 | ||
Mixolydian d3. 3 2 2 3 3 1 3 | |||
''' | '''Aeolian n2''': 2 2 3 3 1 3 3 | ||
''' | '''Trachylocrian''': 2 3 3 1 3 3 2 | ||
''' | '''Ionian d7''': 3 3 1 3 3 2 2 | ||
Dorian d6: 3 1 3 3 2 2 3 | |||
<span style="line-height: 1.5;">'''Phrygian n5''': 1 3 3 2 2 3 3</span> | |||
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