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| == A concultural tradition ==
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| === In-universe background ===
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| Modern Bjeheond (''bay-HUND'') is a small subtropical continent (about the size of Australia). Two Bjeheondian languages function as working languages: Tergetian, a language in the Lakovic family which was originally spoken in the continent Talma to the north, and Literary Netagin, a language isolate based on triconsonantal roots. The two languages are thought to have influenced each other pre-historically, before Proto-Tergetians settled in Talma. The two main countries are the Republic of Bjeheond, a former colony of the Tergetian Empire, and Tumhan, the homeland of the Netagin people. Tergetian and (vernacular varieties of) Netagin are both widely spoken.
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| Bjeheondian music is mainly based on Netagin music, which is based on two main scales: (1) the equi-heptatonic scale, or (2) ''hanier''s, which are scales similar to the semiquartal scale, the nine-note scale LLSLSLSLS which is an extension of the familiar pentatonic scale. This section mainly deals with the use of the semiquartal scale in Netagin music. Netagin music is usually taught to foreigners based on [[14edo]], and modern produced Netagin music use this tuning, as well as other semiquartal edos.
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| Liturgical chanting is not fixed to a particular tuning and may use traditional microtonal inflections or fine-tuned intervals.
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| A Netagin ''hanier'' /hɐ'nɪɾ/ (literally 'stepping') consists of a nine-note scale plus a choice of which subsets to emphasize, either a set of two ''pezům'' /pɛ'zum/ (pentachords, lit. 'set of five') or a framework based on a ''buri'' /by'ɾi/ (lit. 'sprint'), a pentatonic subset. Different styles encourage different subset use.
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| === Pentachordal ===
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| In theory, the six possible ''pezům''s, or pentachords, with large (2\14) and small (1\14) semiquartal steps that build up a scale are:
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| # LLSS Augmented-2-Step Semiquartal Pentachord: ''pezům Kabavin'' /kəbɐ'vin/
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| # LSLS Major Alternating Semiquartal Pentachord: ''pezům Lannin'' /lɐn'nin/ (The modern ''Lannie'' mode of the semiquartal scale is made of two ''pezům Lannin''.)
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| # LSSL Small-Centered Semiquartal Pentachord: ''pezům Kesnin'' /kɛs'nin/
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| # SLLS Large-Centered Semiquartal Pentachord: ''pezům Zierokin'' /zɪro'kin/ (The modern ''Zierokie'' mode begins with a ''pezům Zierokin''.)
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| # SLSL Minor Alternating Semiquartal Pentachord: ''pezům Vašmin'' /vɐʃ'min/ (The modern ''Vašmie'' mode is made of two ''pezům Vašmin''.)
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| # SSLL Diminished-2-Step Semiquartal Pentachord: ''pezům Nobbaxin'' /nobbɐ'xin/
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| In practice, usually only the first five are used. The two ''pezům''s may be disjunct (separated by a major second), or conjunct (either spanning a minor seventh above the root or the major second above the root).
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| The top note of a ''pezům'', if the pezům is in the bottom, may actually be a fifth above the root. This note at the top functions similarly to the ''ghammāz'' in Arabic ''ajnās''.
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| A style that emphasizes ''pezům''s is preferred in folk music (to emphasizing ''pezům''s).
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| === Pentatonic ===
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| ''Buri''s are mainly used in liturgical chanting.
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| === Mode names ===
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| Semiquartal modal harmony is a more modern construct and is a staple of modern Netagin popular music, such as rock, metal and electronic music. (Music imported from Tergetian culture was originally not based on mosses or modes, but on JI; but some modern theories developed in Bjeheond have emphasized various mosses).
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| Modes of the 9-note scale are called ''hačama'' /ɦətʃɐˈma/ (sg. ''hačame'' /ɦətʃɐˈmɛ/, lit. facial expression). These are distinct from the traditional ''hanier''s.
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| * 8|0: LLsLsLsLs ''Cimmaqie'' /tsimə'ʔɪ/ (Tsimmaïan ''tsim-ə-EE-ən'')
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| * 7|1: LsLLsLsLs ''Tavůlie'' /təvu'lɪ/ (Tavulian)
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| * 6|2: LsLsLLsLs ''Lannie'' /lɐn'nɪ/ (Lannian)
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| * 5|3: LsLsLsLLs ''Bonžie'' /bon'ʒɪ/ (Bonzhian)
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| * 4|4: LsLsLsLsL ''Čitupie'' /tʃity'pɪ/ (Chitupian)
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| * 3|5: sLLsLsLsL ''Zierokie'' /zɪro'kɪ/ (Zierokian)
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| * 2|6: sLsLLsLsL ''Vašmie'' /vɐʃ'mɪ/ (Vashmian)
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| * 1|7: sLsLsLLsL ''Pahnačie'' /pəɦnɐ'tʃɪ/ (Pahnachian)
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| * 0|8: sLsLsLsLL ''Qyporie'' /ʔɨpo'rɪ/ (Iporian)
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| The ''Lannie'', ''Zierokin'' and ''Vašmin'' modes are named after the ''Lannin'', ''Zierokin'', and ''Vašmin'' pentachords, respectively.
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| TODO: Does having native mode names make sense?
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| === Use of 28edo ===
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| In modern times [[28edo]] is also used, often for its [[diasem]] scale with step ratio 4:3:1.
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