1087 rules total — 58 shown (capped at 500). ← back to grammar index
| rule_id | Category | Concept | Summary | Body (excerpt) | N att. |
|---|---|---|---|---|---|
R_c25_sadava |
derivation | ṣāḍava | ṣāḍava = forme hexatonique (6 svaras) dérivée par omission d'un svara, sous contrainte de non-omission du saṃvādī de l'aṃśa | FUNCTION form_sadava(jati, amsa): · forbidden := {samvadi(amsa)} · candidates := jati.svaras \ forbidden · IF |candidates| < 6: RETURN NULL # cannot form |
12 |
R_073_bhasas_derivation |
derivation | bhāṣā | Bhāṣās are melodic varieties born from grāma-rāgas; total bhāṣās + vibhāṣās = 73 | DERIVE bhasa FROM grama_raga; DERIVE vibhasa FROM bhasa; COUNT(bhasas + vibhasas) = 73 |
6 |
grama_raga_origin_and_use |
derivation | grāma-rāgas | Grāma-rāgas are born from the two grāmas, are generated by jātis through their aṁśas, and must be used in daśarūpaka according to prescribed | grama_ragas := born_from(grama_set); generated_by := jati.amsa; usage(grama_raga, dasarupaka) := prescribed_rules; context(giti) := grama_raga |
4 |
R_1733_two_gramas_derivation |
derivation | द्विस्वरप्रयोगमूलप्रयोग | Two grāmas (ṣadja and madhyama) are formulated because musical performance is rooted in dual-svara usage (dvisvara-prayoga) | DERIVE gramas FROM dvisvara_prayoga_mula; ENUMERATE gramas = [sadja, madhyama]; COUNT = 2 |
3 |
R_c83_nandayanti |
derivation | nandayantī | nandayantī = jāti dérivée de ārṣabhī + gāndhārī par adjonction de pañcamī; tāra monte jusqu'à ṣaḍja quand pañcama est aṃśa | FUNCTION derive_nandayanti(): · nandayanti := merge(arsabhi, gandhari) + {pancami} · IF amsa == pancama: · tara_extent := up_to_sadja · # solfege patt |
3 |
saindhavī_origin_desi_takkaraga |
derivation | saindhavī | Saindhavī is a regional (deśī) bhāṣā born of ṭakkarāga, originating from the Sindhu region. | saindhavī := {type: bhasa, regional: desi, parent: takkaraga, region: sindhu} |
3 |
vesarasadava_origin_and_bhasas |
derivation | vesaraṣāḍava | Vesaraṣāḍava is born of ṣaḍjamadhyamā (hence related to ṣaḍjagrāma); its bhāṣās include bāhyaṣāḍavā and nādākhyā. | vesarasadava := {parent: sadjamadhyama, grama: sadjagrama, bhasas: [bahyasadava, nadakhya]} |
3 |
R_1734_suddha_vikrta_grama |
derivation | शुद्धाभिर्विकृताभिष्टच | Śadja-grāma born from śuddhā jātis; madhyama-grāma born from vikṛtā jātis | DERIVE grama FROM jati: · IF jati.kind == 'suddha' THEN sadja_grama · IF jati.kind == 'vikrta' THEN madhyama_grama · SAMKIRNA: born from both |
2 |
R_298_upalolaka_def |
derivation | upalolaka | upalolaka derived from udvāhita by repeating svara-pairs twice | DEFINE upalolaka := udvahita WITH repeat(svara_pairs, n=2) · RELATION: upalolaka IS_VARIANT_OF udvahita |
2 |
R_4p0_026 |
derivation | āndhrī | āndhrī = jāti nee du blending d'ārṣabhī et gāndhārī seul; ṣaḍja+madhyama+dhaivata sont non-aṁśas | DEFINE āndhrī(): · parents = {'ārṣabhī', 'gāndhārī'} · derivation = 'blending_alone' · non_aṁśas = {'ṣaḍja', 'madhyama', 'dhaivata'} · RETURN jāti('āndh |
2 |
R_4p1_862 |
derivation | गौडकैशिकः | Gauḍakaiśika is derived from kaiśikī and ṣaḍjamadhyamā jātis; aṁśa = ṣaḍja, nyāsa = pañcama | DERIVE Gauḍakaiśika FROM jātis={kaiśikī, ṣaḍjamadhyamā} · SET aṁśa = ṣaḍja · SET nyāsa = pañcama |
2 |
R_884_takkakaishika |
derivation | Ţakkakaiśika | Ṭakkakaiśika is born of dhaivatī and madhyamā jātis, and is related to ṣaḍjagrāma. | IF entity == 'takkakaishika': parent_jatis = {dhaivati, madhyama}; grama_relation = 'shadjagrama' |
2 |
R_c231_magadhi_giti |
derivation | māgadhī gīti | māgadhī gīti = résultat de pṛthulā gīti (assignée à dakṣiṇa mārga) exécutée en citra mārga (plus rapide); va avec ekakala tāla, 12 kalās | FUNCTION derive_magadhi_giti(): · source := {giti: 'prthula', marga: 'daksina'} · transform := perform_in(source, target_marga='citra') # i.e. faster · R |
2 |
gandharapancama_derivation_from_jatis |
derivation | gāndhārapañcama | Gāndhārapañcama is born of the jātis gāndhārī and raktagāndhārī; despite cross-grāma parentage, it relates to madhyamagrāma (per Durgaśakti, | GANDHARAPANCAMA = { · 'parent_jatis': ['gandhari','raktagandhari'], · 'grama_assignment': 'madhyamagrama', · 'alt_view': 'sadjagrama (Durgasakti)' · } |
2 |
gaudakaisika_jati_origin_grama |
derivation | gaudakaiśika rāga | Gaudakaiśika rāga is born of kaiśikī and ṣaḍjamadhyamā jātis and is related to madhyamagrāma. | jati_origin(gaudakaisika) := {kaisiki, sadjamadhyama}; grama_of(gaudakaisika) := madhyamagrama |
2 |
revagupta_jati_origin_and_svaras |
derivation | revagupta | Revagupta is born of ārṣabhī and madhyamā jātis, has ṛṣabha as aṁśa and madhyama as nyāsa. | jati_origin(revagupta) := {arsabhi, madhyama}; amsa(revagupta) := rsabha; nyasa(revagupta) := madhyama |
2 |
sadjagrama_membership_via_birth_jati |
derivation | sadjagrāma | A rāga is related to ṣaḍjagrāma when born from a sadjagrāma jāti (sauvīraka←ṣaḍjamadhyamā) or via 4-śruti pañcama (ṭakkakaiśika). | grama(R) := sadjagrama if parent_jati(R) in sadjagrama_jatis OR pancama_sruti(R)==4 |
2 |
sadjagrama_sadava_murchana_formation |
derivation | sadjagrāma | The ṣāḍava mūrchanās of ṣaḍja-grāma arise by omitting one of {ṣaḍja, ṛṣabha, pañcama, niṣāda}; the omission of gāndhāra is not prescribed in | sadava_murchanas(sadjagrama) := {omit(s) | s in {sadja, rsabha, pancama, nisada}}; forbidden_omission := gandhara |
2 |
sankirna_jati_derivation |
derivation | संकीर्णा | Saṁkīrṇā jātis are born from the two types of jātis (śuddhā and vikṛtā) by mixing-up and slight augmentation/diminution of svaras, which the | def derive_sankirna(shuddha_jatis, vikrta_jatis): · return mix(shuddha_jatis + vikrta_jatis, ops=['utkarsha','apakarsha','sankirnatva']) |
2 |
svara_jati_nyasa_naming |
derivation | svara-jāti | Une jāti portant le nom d'un svara prend ce svara comme nyāsa; il existe sept svara-jātis avec deux formes śuddhā et vikṛtā. | IF jati.name == svara.name THEN jati.nyasa := svara; svara_jati.count = 7; svara_jati.forms = {suddha, vikrta} |
2 |
BD_6_1_R019 |
derivation | Madhyamodīcyavā | Madhyamodīcyavā arises from blending of gāndhārī, madhyamā, pañcamī and dhaivatī | DEFINE madhyamodichyava.origin: · parents = [gandhari, madhyama, panchami, dhaivati] · operation = 'blending' // samsarga · RETURN BLEND(parents) |
1 |
BD_6_1_R025 |
derivation | drāviḍī | Drāvidī is the third bhāṣā born of ṭakkakaiśika and is described with lakṣaṇas | DEFINE dravidi: · parent = takkakaishika · birth_order = 3 · has_lakshanas = true |
1 |
R_1280_01 |
derivation | pañcamanyāsaḥ | Pañcamanyāsa structural element originates from Kaiśikī jāti | FUNCTION origin_of(pañcamanyāsa): · RETURN 'Kaiśikī_jāti' |
1 |
R_1389_01 |
derivation | aṁśa svara | 18 jātis × amsa-svaras → 63 jāti varieties | FUNCTION enumerate_varieties(): · total_amsas = sum(j.amsa_count for j in jātis_18) · ASSERT total_amsas == 63 · RETURN 63 # one variety per amsa-svara |
1 |
R_1803_kuta_tanas_vyutkrama |
derivation | क्टताना | kūṭa-tānas = melodic sequences formed by vyutkrama (permutation) | DERIVE kuta_tana FROM svara_sequence BY vyutkrama(permutation) |
1 |
R_1808_01 |
derivation | निषादस्यापि | Each svara generates 720 kūṭa-tānas; seven svaras together = 5040 | FOR svara IN [ni,dha,pa,ma,ga,ri,sa]: COUNT(kūṭa-tānas) = 720 · TOTAL = 7 * 720 = 5040 |
1 |
R_2193_kuta_tana_permutation |
derivation | kūļa-tāna | Kūṭa-tāna is generated by permutation/combination with explicit count per variety | GENERATE kuta_tana = permutations(svara_set) WITH count_per_variety |
1 |
R_266_gramaraga |
derivation | grāma-rāgas | Each grāmarāga is born of one or more jātis. | FOR_EACH gramaraga: parents = list_of_jatis WHERE len(parents) >= 1 |
1 |
R_354_vikrta_jatis |
derivation | vikṛtā jātis | Vikṛtā jātis are derived from śuddhā jātis by violation of one, two, or many lakṣaṇas, EXCEPT the nyāsa (which must be preserved). | DERIVE vikrta(jati) := suddha_jati WITH violations(lakshanas, count ∈ {1, 2, many}); CONSTRAINT: preserve(nyasa) |
1 |
R_370_sadava_derive |
derivation | षाडवा | Hexatonic (ṣāḍava) form derived by omitting ṣaḍja | DERIVE sadava(scale) := omit(scale, sadja) · ASSERT |sadava| == 6 |
1 |
R_498_shunya |
derivation | śūnya | The introduction of śūnya (zero/void) paves the way for the unit druta (1/2 mātrā) in deśī tālas. | IF tala_system == 'deshi': introduce(shunya) => enable(druta = 0.5 * matra) |
1 |
R_524_vanmaya_rel |
derivation | vānmaya | all vānmaya (speech/language) is born from nāda | DERIVE vanmaya FROM nada · INVARIANT: forall x IN vanmaya: source(x) == nada |
1 |
R_5p2_679 |
derivation | ṣaḍja-kaiśikī | ṣaḍjakaiśikī jāti is derived from the blending of ṣaḍjā and gāndhārī | sadjakaisiki = blend(sadja, gandhari) |
1 |
R_5p2_841 |
derivation | ṣadjodicyavati | Bhinna-ṣaḍja rāga is born from ṣadjodīcyavatī jāti | IF jati == sadjodicyavati THEN derived_raga = bhinna_sadja |
1 |
R_5p2_887 |
derivation | kaiśikī jāti | Mālavakaiśika is derived from kaiśikī jāti | IF jati == kaisiki THEN may_derive(malavakaisika) |
1 |
R_5p2_921 |
derivation | antara-bhāṣā | Antara-bhāṣās are derived from vibhāṣās | antara_bhasha = derive_from(vibhasha) |
1 |
R_5p3_1699 |
derivation | ārṣabhī jāti | Ārṣabhī jāti is parent of Kakubha and revagupta | IF jati IN {'Kakubha', 'revagupta'} THEN parent_jati := 'ārṣabhī' |
1 |
R_674_01 |
derivation | samsargajā vikṛtā | 11 jātis derived as vikṛtā by mutual blending | FUNCTION derive_eleven_jātis(): · RETURN blend(vikṛtā_varieties) # state = altered, not śuddha |
1 |
R_677_samavaya_jati_origin |
derivation | samavāya | Jātis are born as śuddhā and vikṛtā through samavāya (commingling of svaras with functions graha/aṁśa/nyāsa) | FOR svaras WITH functions IN {graha, amsa, nyasa, ...}: APPLY samavaya(commingle) -> jati IN {suddha, vikrta} |
1 |
R_680_sadjodicyavati_derivation |
derivation | ṣadjodicyavati | Ṣaḍjodīcyavatī dérive de ṣaḍjā et gāndhārī avec ajout de dhaivatī. | DERIVE sadjodicyavati FROM combine(sadja, gandhari) ADD dhaivati |
1 |
R_681_gandhara_pancami_derivation |
derivation | gāndhārapañcamī | gāndhāra-pañcamī arises only from gāndhārī and pañcamī svaras | DEFINE gandhara_pancami_source(): · RETURN {gandhari, pancami} |
1 |
R_763_auduva_dhaivati |
derivation | auduva formation | auduva of dhaivatī is formed by omitting pañcama and ṣaḍja | DEFINE auduva(dhaivati) := svaras(dhaivati) \ {pancama, sadja} |
1 |
R_781_shadava_gandharodicyava |
derivation | षाडवं | ṣāḍava (hexatonic) form of Gāndhārodīcyavā is created by omitting ṛṣabha | DEFINE shadava(Gandharodicyava) := svaras(Gandharodicyava) \ {rshabha} |
1 |
R_824_01 |
derivation | ṣadjamadhyamā jāti | Śuddhasādhārita is born of ṣaḍjamadhyamā jāti | FUNCTION derive_śuddhasādhārita(): · RETURN born_of(ṣaḍjamadhyamā_jāti) |
1 |
R_826_suddhakaisika_birth |
derivation | kārmāravī jāti | Śuddhakaiśika is born from kaiśikī jāti and kārmāravī jāti | DEFINE suddhakaisika.parents := {kaisiki_jati, karmaravi_jati} |
1 |
R_920_vibhasa_from_bhasa |
derivation | vibhāṣā | Vibhāṣās are derived from bhāṣās | DEFINE vibhasa.parent := bhasa; (and bhasa.parent := grama_raga) |
1 |
R_934_01 |
derivation | Bottaraga | māṅgalī bhāṣā is born of boṭṭa-rāga | FUNCTION derive_māṅgalī(): · RETURN born_of(boṭṭa_rāga) |
1 |
R_935_takkakaisika_parents |
derivation | takkakaiśika | Mālavā and bhinnavālikā are born of ṭakkakaiśika | DEFINE children(takkakaisika) INCLUDES {malava, bhinnavalika} |
1 |
audavita_via_two_samvadin_omissions |
derivation | samvādin | The state of auduvita arises by the omission of two saṁvādin svaras. | def to_audavita(svara_set): · return svara_set.omit_pairs(SAMVADIN_PAIRS, n=2) |
1 |
bhinnakaiśika_origin_madhyamagrama |
derivation | bhinnakaiśika | Bhinnakaiśika is born of kaiśikī and kārmāravī jātis and is therefore related to madhyamagrāma. | origin(bhinnakaiśika) := jatis{kaiśikī, kārmāravī}; grama(bhinnakaiśika) := madhyamagrama |
1 |
ekakala_vidhuta_formation |
derivation | ekakala | Ekakala vidhuta is formed through gradual successive ascent of two svaras. | def ekakala_vidhuta(svaras): · assert len(svaras) == 2 and svaras[1] > svaras[0] · return Alankara('ekakala_vidhuta') |
1 |
gaudaraga_etymology_gaudagiti |
derivation | गौडरागा | Gauḍa rāgas are so named because they relate to gauḍagīti (the Gauḍa musical/performance style). | GAUDA_RAGAS = {'name_origin':'gaudagiti_relation'} |
1 |
karmaravi_formation |
derivation | kārmāravī | Kārmāravī is formed from ārṣabhī, gāndhārī, and pañcamī jātis with omission of gāndhāri and addition of niṣādā. | karmaravi := (arsabhi + gandhari + pancami) - {gandhari_svara} + {nisada} |
1 |
revagupta_from_arshabhi_madhyama |
derivation | ārṣabhī and madhyamā jātis | Revagupta is born of the ārṣabhī and madhyamā jātis. | REVAGUPTA = {'parent_jatis':['arshabhi','madhyama']} |
1 |
rupasadharita_origin |
derivation | Rūpasādhārita | Rūpasādhārita appartient à ṣaḍjagrāma et provient de ṣaḍjamadhyamā et niṣādavatī. | DERIVE rupasadharita FROM {sadjamadhyama, nisadavati}; grama_relation: sadjagrama |
1 |
shaka_derivation_grama |
derivation | śaka | Śaka is born of the ṣāḍjī and dhaivatī jātis and is related to ṣaḍjagrāma. | SHAKA = {'parent_jatis': ['sadji','dhaivati'], 'grama': 'sadjagrama'} |
1 |
takkaraga_derivation_and_grama |
derivation | ṭakkarāga | Takkarāga is born of dhaivatī and ṣaḍjamadhyamā jātis and is related to ṣaḍjagrāma. | TAKKARAGA = {'parent_jatis': ['dhaivati','sadjamadhyama'], 'grama': 'sadjagrama'} |
1 |
takkasaindhava_from_sadji_dhaivati |
derivation | ṣāḍjī and dhaivatī jātis | Takkasaindhava is born from the ṣāḍjī and dhaivatī jātis. | takkasaindhava := DERIVED_FROM({sadji, dhaivati}) |
1 |