17平均律
17平均律はオクターブを均等な17パートに分割したものであり、各ステップは70.588セントである。13平均律に次ぎ19平均律の前となる、7番目の素数平均律である。
17平均律の音程と近似値[edit]
各周波数比の大きさが16以内で表現される純正音程は以下のようになる。これはedjirulerを用いて、[number of equal divisions=17, interval of equivalence=2, integer limit=16, threshold of JI pitch inclusion=0.25]というパラメータで生成したものである。「The “neighborhood” of JI」の一覧はこちら(huygens-fokker)を参照のこと。
EDO | interval | cent | DMS | The "neighborhood" of JI | Japanese name | ratio | diff cent | cent | diff DMS | DMS |
17 | 0 | 0.00 | 0.00 | |||||||
1 | 70.59 | 21.18 | ||||||||
2 | 141.18 | 42.35 | 2/3-tone | 2/3全音 | 14/13 | 12.88 | 128.30 | 3.86 | 38.49 | |
2 | 141.18 | 42.35 | tridecimal 2/3-tone | 13リミットの2/3音 | 13/12 | 2.60 | 138.57 | 0.78 | 41.57 | |
2 | 141.18 | 42.35 | 3/4-tone, undecimal neutral second | 3/4全音、11リミットの中立的な2度 | 12/11 | -9.46 | 150.64 | -2.84 | 45.19 | |
3 | 211.76 | 63.53 | major whole tone | 大全音 | 9/8 | 7.85 | 203.91 | 2.36 | 61.17 | |
4 | 282.35 | 84.71 | septimal minor third | 7リミットの短3度 | 7/6 | 15.48 | 266.87 | 4.64 | 80.06 | |
4 | 282.35 | 84.71 | tridecimal minor third | 13リミットの短3度 | 13/11 | -6.86 | 289.21 | -2.06 | 86.76 | |
5 | 352.94 | 105.88 | undecimal neutral third | 11リミットの中立3度 | 11/9 | 5.53 | 347.41 | 1.66 | 104.22 | |
5 | 352.94 | 105.88 | tridecimal neutral third | 13リミットの中立3度 | 16/13 | -6.53 | 359.47 | -1.96 | 107.84 | |
6 | 423.53 | 127.06 | undecimal diminished fourth or major third | 11リミットの減4度または長3度 | 14/11 | 6.02 | 417.51 | 1.81 | 125.25 | |
6 | 423.53 | 127.06 | septimal major third, BP third | 7リミットの長3度、ボーレン・ピアスの3度 | 9/7 | -11.55 | 435.08 | -3.47 | 130.53 | |
7 | 494.12 | 148.24 | perfect fourth | 完全4度 | 4/3 | -3.93 | 498.04 | -1.18 | 149.41 | |
8 | 564.71 | 169.41 | undecimal semi-augmented fourth | 11リミットの準増5度 | 11/8 | 13.39 | 551.32 | 4.02 | 165.40 | |
9 | 635.29 | 190.59 | tridecimal diminished fifth | 13リミットの減5度 | 13/9 | -1.32 | 636.62 | -0.40 | 190.99 | |
9 | 635.29 | 190.59 | undecimal semi-diminished fifth | 11リミットの準減5度 | 16/11 | -13.39 | 648.68 | -4.02 | 194.60 | |
10 | 705.88 | 211.76 | perfect fifth | 完全5度 | 3/2 | 3.93 | 701.96 | 1.18 | 210.59 | |
11 | 776.47 | 232.94 | septimal minor sixth | 7リミットの長6度 | 14/9 | 11.55 | 764.92 | 3.47 | 229.47 | |
11 | 776.47 | 232.94 | undecimal augmented fifth | 11リミットの増5度 | 11/7 | -6.02 | 782.49 | -1.81 | 234.75 | |
12 | 847.06 | 254.12 | tridecimal neutral sixth | 13リミットの中立6度 | 13/8 | 6.53 | 840.53 | 1.96 | 252.16 | |
13 | 917.65 | 275.29 | septimal major sixth | 7リミットの長6度 | 12/7 | -15.48 | 933.13 | -4.64 | 279.94 | |
14 | 988.24 | 296.47 | Pythagorean minor seventh | ピタゴラスの短7度 | 16/9 | -7.85 | 996.09 | -2.36 | 298.83 | |
15 | 1058.82 | 317.65 | 21/4-tone, undecimal neutral seventh | 21/4全音、11リミットの中立7度 | 11/6 | 9.46 | 1049.36 | 2.84 | 314.81 | |
15 | 1058.82 | 317.65 | 16/3-tone | 16/3全音 | 13/7 | -12.88 | 1071.70 | -3.86 | 321.51 | |
16 | 1129.41 | 338.82 | ||||||||
17 | 1200.00 | 360.00 |
理論[edit]
17平均理論の導入として、SeventeenTonePianoProject :17音理論に目を通すとよい。もう1つの導入として、George SecorのThe 17-tone Puzzleにも目を通すとよい。17edo Solfege.17平均律テトラコード.Proyect 17-Perúも参照のこと。
17平均律は2.3.25.7.11.13サブグループテンペラメントとしてもっともらしく扱うことができる。それはとても計算されている。7リミット周波数比は一般的に、他の整数と同じぐらい良く現れないけども。
コンマをなだらかにする[edit]
17平均律を< 17 27 39 48 59 63 |ヴァルとみなした時、次のリストのコンマをテンパーアウトする。
Comma | Monzo | Value (Cents) | Name 1 | Name 2 | Name 3 |
---|---|---|---|---|---|
134217728/129140163 | | 27 -17 > | 66.765 | 17-Comma | ||
25/24 | |-3 -1 2> | 70.762 | Chromatic semitone | Dicot comma | |
32805/32768 | | -15 8 1 > | 1.9537 | Schisma | ||
64/63 | | 6 -2 0 -1 > | 27.264 | Septimal Comma | Archytas' Comma | Leipziger Komma |
245/243 | | 0 -5 1 2 > | 14.191 | Sensamagic | ||
1728/1715 | | 6 3 -1 -3 > | 13.074 | Orwellisma | Orwell Comma | |
420175/419904 | | -6 -8 2 5 > | 1.1170 | Wizma | ||
99/98 | | -1 2 0 -2 1 > | 17.576 | Mothwellsma | ||
896/891 | | 7 -4 0 1 -1 > | 9.6880 | Pentacircle | ||
243/242 | | -1 5 0 0 -2 > | 7.1391 | Rastma | ||
385/384 | | -7 -1 1 1 1 > | 4.5026 | Keenanisma | ||
525/512 | | -9 1 2 1 > | 43.408 | Avicennma | Avicenna's Enharmonic Diesis |
メモ:17-comma、avicennma、chromatic semitoneは比較的大きいサイズにもかかわらず、すべて13リミットの特徴的なヴァルによりテンパーアウトされる。
Scales[edit]
List of 17edo rank two temperaments by badness
List of edo-distinct 17c rank two temperaments
Music[edit]
Compositions[edit]
- Prelude by Daniel Wolf
- Heptadecatonic Drops by Georg Hajdu
- Klangmoraste by Georg Hajdu
- Charles Loli 17edo music for guitar heptadecatonic (2001) and armony inductive microtonaly (1993)
- microtonalismo Heptadecatonic Peruvian
Sound files[edit]
- Puhlops and Laugua's Big Adventure by |Aaron Krister Johnson
- Adagio for Margo by Aaron Krister Johnson
- Transformation by Herman Miller
- Waltz by Christopher Bailey
- Lostfound by Christopher Bailey
- excerpt from Balladei (in 17, 29 and 12) by Christopher Bailey , CD available here .
- Two-Part Invention in 17ET by Aaron Andrew Hunt
- Overture to A Midsummer Night's Dream by Rick McGowan
- Fairy Lullaby from A Midsummer Night's Dream by Rick McGowan
- A Calamitous Simultaneity by Igliashon Jones (17edo and 22edo)
- First Impressions by Igliashon Jones
- I Insist by Igliashon Jones
- Etude no1 for 2 Pianos in 17 Equal Temperament and Etude no2 for 2 Pianos in 17 Equal Temperament Jon Lyle Smith
- A number of compositions from seventeen-tone piano project phase I , seventeen-tone piano project phase II, seventeen-tone piano project phase III.
- 17edo - 17edo-tagged compositions on www.archive.org
- sing a blue by Andrew Heathwaite (composed 2008, recorded 2010). This and the other pieces below by Andrew for cümbüş, steel tubes & voice.
- stringfinger it everybean by Andrew Heathwaite (composed 2008, recorded 2010).
- cat feet belly by Andrew Heathwaite (composed 2008, recorded 2010).
- 17 Tone Jam by Marmalade Man
- youtube videos tagged with 17edo
- On the Shores of the Dead Sea blog video of On the Shores of the Dead Sea by Chris Vaisvil
- Only in Disneyland 17 blog edo guitar solo play Only in Disneyland by Chris Vaisvil
- 17 Reasons I Hate the Blues blog play 17 Reasons I Hate the Blues by Chris Vaisvil
- Klingon Opera Overture blog play Klingon Opera Overture by Chris Vaisvil
- Seventeen Selfless Notes blog play Seventeen Selfless Notes by Chris Vaisvil
- 17ET Jazz blog play 17et Jazz by Chris Vaisvil (60 x 60 winner)
- 17 Pink Tuxedos blog play 17 Pink Tuxedos by Chris Vaisvil
- Devil in the Deep Blue Sea blog play Devil in the Deep Blue sea blues collaboration between The Two Regs (vocals / lyrics) and Norm Harris (percussion) and Chris Vaisvil (17 note per octave electric guitar and fretless bass).
- Seventeen Years in the Sixties blog play Seventeen Years in the Sixties by Chris Vaisvil
- CT Scan blog play video CT Scan by Chris Vaisvil
- Fish and a Grenade blog play Fish and a Grenade (parental advisory language) by Chris Vaisvil
- Seventeen Unsteady Hands blog play video of performance of Seventeen Unsteady Hands by Chris Vaisvil
- The Pond blog by Chris Vaisvil and video version of The Pond with Japanese Garden
- Graveyard blog play Graveyard by Chris Vaisvil
- For Brass and Voice Choirs in 17 edo by Chris Vaisvil more on the composition
- And I Became One With My Per Fungi by Chris Vaisvil => more on composition
- counterintuitive (17 edo guitar solo) by Chris Vaisvil => more on composition
- No Love by Gregory Sanchez