Cool Math for Hot Music 輪読会 Sec.16 Part 2

Transcript

1. HASH 2021-07-05 16. Nerves (Part 2) Cool Math for Hot Music ྠಡձ
2. ໨ඪ 1. ಈػͱ͍͏ߏ଄ʹ຺ମͷࢹ఺Λ࣋ͭ 2. ͜ΕͷงғؾΛཧղ
3. େ·͔ͳྲྀΕ 1. Hammerklavier ͱδάβά 2. δάβάͰ࡞ۂͯ͠ΈΔ 3. ຺ମͷදݱྗͱָේͷෳࡶੑ
4. 1. Hammerklavier ͱδάβά
5. 1. Hammerklavier ͱδάβά • "Hammerklavier": Beethoven Op.106 • 4 ָষߏ੒ͷϐΞϊۂɻୈ 1 ָষ Allegro ͸ιφλܗࣜ • Ͳ͏΍Βୈ 1 ָষͷௐੑɾಈػ͸ C#dim7 ʹࢧ഑͞Ε͍ͯΔΒ͍͠ • ͱ͍ͬͯ΋ Reference [72] ͸ Mazzola ઌੜͷຊͳͷͰɺWikipedia ͳΒ [ಠࣗݚڀ] λάҊ݅ • ͳ͓ɺ[72] ͸υΠπޠ
6. 1. Hammerklavier ͱδάβά • "Hammerklavier": Beethoven Op.106 • C#dim7 ͸൒Ի 3 ͭ෼ͷରশੑ • ϝγΞϯͷʮҠߴͷݶΒΕͨટ๏ʯୈ 2 ൪ͱ ಉ͡Α͏ͳ 3 ൒ԻͷରশੑΛ࣋ͭ • Ώ͑ʹ C#dim7 ͔Βपظ 3 ͷδάβάύλʔϯ ͕༠ಋ͞ΕΔͷ͸ࣗવʢͱओு͍ͯ͠Δʣ • पظ 3 ͷδάβάύλʔϯ͕ Hammerklavier ͷಈػ܈ʹݟͯऔΕΔɺͱ [72] Ͱओு͍ͯ͠ ΔΒ͍͠
7. 1. Hammerklavier ͱδάβά https://slidetodoc.com/concepts-locaux-et-globaux-premire-partie-thorie-objective/
8. 1. Hammerklavier ͱδάβά https://www.geogebra.org/m/YCZa8TAH
9. 2. δάβάͰ࡞ۂͯ͠ΈΔ
10. 2. δάβάͰ࡞ۂͯ͠ΈΔ • Beethoven ͸ C#dim7 Ͱ 12 ൒ԻΛ 3 ൒Իͣͭʹ෼͚ͨʢҰ୴ओுΛೝΊΔʣ • ൃలͤͯ͞ C#aug Ͱ 12 ൒ԻΛ 4 ൒Իͣͭʹ෼͚ͯΈΔʢϝγΞϯୈ 3 ટ๏తʣ • 4 ൒ԻͣͭͳͷͰɺδάβάͷपظ͸ 4 ʹͳΔ
11. 2. δάβάͰ࡞ۂͯ͠ΈΔ • Beethoven ͸δάβάʢͷઢܗม׵ʣͷ্ʹશͯԻ͕ ฒΜͰ͍ͨ • ൃలͤͯ͞ɺෳ਺ຊͷδάβάͷଋΛߟ͑ͯΈΔ • Ճ͑ͯɺ1 ຊͷδάβάʹ͸෦෼తʹԻΛฒ΂Δ
12. 2. δάβάͰ࡞ۂͯ͠ΈΔ • ॎํ޲ʹ͸ผʑͷδάβάʮύλʔϯʯ Λฒ΂Δ • ্࣌ؒ࣠ʹ 1 ͭͣͭݟ͍͖ͯɺಉ࣌ؒ͡ ্࣠ͷॎํ޲ͰҰ൪্ʹ৐͍ͬͯΔԻͰ ಈػΛߏ੒͍ͯ͘͠ʢΒ͍͠ʁʣ • ը૾͸ಉ͡ۂͷ Main Theme ͷߏ੒ʹͭ ͍ͯݴٴ͍ͯ͠Δࢿྉ • "Finally, we take the configuration's top notes within C major." • ಈػͷߏ੒͸ "configuration"ʢδάβά ύλʔϯͷฒ΂ํʣͱટ๏ʹґଘʁ The Future of Music: Towards a Computational Musical Theory of Everything
13. 2. δάβάͰ࡞ۂͯ͠ΈΔ • पظ 4 ͷδάβάʢͷԟ෮ʣͷʮඃ෴ʯΛ࡞Γɺδάβάύλʔϯͷ຺ମΛ࡞Δ • δάβάͷʢยಓʣपظ͸ 4 ͕ͩɺԻΛׂΓ౰ͯΔ৔ॴ͸ 3 Օॴʹ͍ͯ͠Δʢཧ༝ෆ໌ʣ
14. 2. δάβάͰ࡞ۂͯ͠ΈΔ • Exercise 5
15. 2. δάβάͰ࡞ۂͯ͠ΈΔ • ॎʹฒ΂Δδάβάύλʔϯͷ ૊Έ߹ΘͤΛ຺ମʹԊͬͯ࡞Δ
16. 2. δάβάͰ࡞ۂͯ͠ΈΔ • ॎʹฒ΂Δδάβάύλʔϯͷ ૊Έ߹ΘͤΛ຺ମʹԊͬͯ࡞Δ • ͨ͘͞Μ࡞Δ
17. 2. δάβάͰ࡞ۂͯ͠ΈΔ • ॎํ޲ʹ͸ 1 ͭͷ૊ʹؚ·ΕΔ δάβάύλʔϯ͕ฒͿΑ͏ʹ • ԣํ޲ʢ࣌ؒํ޲ʣʹ͸ผͷ ύλʔϯ૊͕ฒͿΑ͏ʹ഑ஔ • ͨͩ͠ɺશମͱ্ͯ͠ߦ͢ΔΑ͏ δάβάͷଋશମΛ܏͚Δ • ͲΕ͘Β͍܏͚͍ͯΔʁ ࢖͍ͬͯΔટ๏͸ʁ ͍·͍ͪෆ໌
18. 2. δάβάͰ࡞ۂͯ͠ΈΔ • ϐΞϊͷӈखͱࠨखͦΕͧΕʹผͷ δάβάଋΛ༻ҙ • ͳΜͱͳ͘ԣ࣠ํ޲ͷ։࢝ҐஔΛ ͣΒ͍ͯ͠Δؾ͕͠ͳ͘΋ͳ͍
19. 2. δάβάͰ࡞ۂͯ͠ΈΔ • Ͱɺ͏·͍ײ͡ʹΤΠϠ͢Δͱۂ͕Ͱ͖ΔΒ͍͠
20. 3. ຺ମͷදݱྗͱָේͷෳࡶੑ
21. 3. ຺ମͷදݱྗͱָේͷෳࡶੑ • ू߹ X ͷඃ෴ C ͸ 2X ͷ෦෼ू߹ • ຺ମ N(C) ͸ 2C = 22^Xͷ෦෼ू߹ʢॏͳΓΛ࣋ͭू߹Ͳ͏͠Λ·ͱΊͨΓ͢Δʣ N(C) X ஍ٿ؀ڥอશͷͨΊεϥΠυΛ࠶ར༻͍ͯ͠·͢
22. 3. ຺ମͷදݱྗͱָේͷෳࡶੑ • ू߹ X ͷඃ෴ C ͸ 2X ͷ෦෼ू߹ • ຺ମ N(C) ͸ 2C = 22^Xͷ෦෼ू߹ʢॏͳΓΛ࣋ͭू߹Ͳ͏͠Λ·ͱΊͨΓ͢Δʣ • ಉ͡Α͏ʹ຺ମͷ຺ମΛߟ͑Ε͹ɺͲΜͲΜࢦ਺ͷݞ͕৐͍ͬͯ͘ → ߴ͍දݱྗΛ࣋ͭ N(C) X ஍ٿ؀ڥอશͷͨΊεϥΠυΛ࠶ར༻͍ͯ͠·͢
23. 3. ຺ମͷදݱྗͱָේͷෳࡶੑ • ָේͷଊ͑ํ 1ɿԻූͷཏྻͱݟΔ • ͭͳ͕ΓΛߟྀ͠ͳ͍ͷͰɺͦΕͧΕͷԻූ͕ݽཱͨ͠ 0 ୯ମʢ఺ʣͱͯ͠ࢄࡏ͢Δ͚ͩ • Ҡௐͯ͠ಉָ͡ේ͸ಉܕʢ࣮࣭ಉ͡ʣʹݟ͑ͯ͠·͏
24. 3. ຺ମͷදݱྗͱָේͷෳࡶੑ • ָේͷଊ͑ํ 2ɿશͯͷԻΛؚΉɺ຺ମతͳ 1 ຕͷਤͰߟ͑Δ • ϐονؒͷͭͳ͕Γɺಈػͱల։ͱͷͭͳ͕ΓɺௐͲ͏͠ͷͭͳ͕Γɺ࿨੠ͷͭͳ͕Γɺetc. • ͍Ζ͍Ζͳͭͳ͕ΓΛදݱͨ͠ਤͱͳΓɺ༷ʑͳύϥϝʔλΛ಺ࡏͤͨ͞΋ͷʹͳΔ • ͦͷΑ͏ͳਤ͸ҰମͲΕ͘Β͍ଘࡏ͢Δʁ
25. 3. ຺ମͷදݱྗͱָේͷෳࡶੑ https://slidetodoc.com/concepts-locaux-et-globaux-premire-partie-thorie-objective/