[{"data":1,"prerenderedAt":2310},["ShallowReactive",2],{"sidebar-nodes":3,"node-enharmonic":1285,"related-nodes-degree":1484},[4,57,324,621,826,1082,1149],{"id":5,"title":6,"body":7,"description":41,"domains":42,"draft":44,"extension":45,"lead":46,"meta":47,"navigation":48,"path":49,"relatedNotes":50,"relations":50,"seo":51,"stem":52,"tags":53,"titleEn":55,"__hash__":56},"nodes\u002Fnodes\u002Fabout.md","このサイトについて",{"type":8,"value":9,"toc":36},"minimark",[10,19,23,30],[11,12,13,14,18],"p",{},"Ring Rong は、音楽理論を ",[15,16,17],"strong",{},"鳴らしながら確かめる"," サイト。読むだけじゃなく、鍵盤を触って、聴いて、納得する。上達のための練習場ではなくて、「あ、そういうことか」と気づくための場所。",[20,21,22],"h2",{"id":22},"はじめまして",[24,25,27],"say",{"by":26},"リン",[11,28,29],{},"リン。音楽理論？まあ、ちょっと気になるだけ。……いや、ほんとはけっこう知りたい。",[24,31,33],{"by":32},"ロン",[11,34,35],{},"ロンです。音楽の話と、それを誰かに話すのが好き。リンが「なんで？」って言うと、つい鍵盤を出してきちゃう。",{"title":37,"searchDepth":38,"depth":38,"links":39},"",2,[40],{"id":22,"depth":38,"text":22},"Ring Rong は、音楽理論を 鳴らしながら確かめる サイト。読むだけじゃなく、鍵盤を触って、聴いて、納得する。上達のための練習場ではなくて、「あ、そういうことか」と気づくための場所。",[43],"meta",false,"md","Ring Rong は、音楽理論を鳴らしながら確かめるラボノート。読むだけじゃなく、鍵盤を触って、聴いて、納得する。",{},true,"\u002Fnodes\u002Fabout",null,{"title":6,"description":41},"nodes\u002Fabout",[54],"Info","About","dHI6oH8tGWlJqBght9eaUqYoO5VdjS-QUQYeVV4vfPA",{"id":58,"title":59,"body":60,"description":37,"domains":298,"draft":44,"extension":45,"lead":300,"meta":301,"navigation":48,"path":302,"relatedNotes":303,"relations":313,"seo":318,"stem":319,"tags":320,"titleEn":322,"__hash__":323},"nodes\u002Fnodes\u002Fdegree.md","度って何？",{"type":8,"value":61,"toc":294},[62,67,109,114,117,127,148,159,167,172,182,186,197,213,218,234,239,248,253,262],[24,63,64],{"by":26},[11,65,66],{},"ね、ロン。「3度ハモる」とか「5度跳ぶ」とか聞くんだけど、度って何？",[24,68,69,76,88,98],{"by":32},[11,70,71,72,75],{},"あー、それね。度っていうのは、音と音のあいだを ",[15,73,74],{},"音の数"," で数える単位なんだ。",[11,77,78,79,83,84,87],{},"たとえば ",[80,81,82],"note",{},"C"," から ",[80,85,86],{},"E"," まで。",[89,90],"play-keyboard",{"highlight":91,"label":92,"notes":93,"octaves":94,"start-octave":95,"gap":96,"markings":97},"C4,E4","C → D → E","C4,D4,E4","1","4","0.3","C4:1,D4:2,E4:3",[11,99,100,102,103,102,106,108],{},[80,101,82],{}," と ",[80,104,105],{},"D",[80,107,86],{}," で3つぶん。だから「3度」って呼ぶんだ。",[24,110,111],{"by":26},[11,112,113],{},"ふーん、数で言うのか。",[20,115,116],{"id":116},"始点も含めて数える",[24,118,119],{"by":26},[11,120,121,122,83,124,126],{},"ちょっと待って。じゃあ ",[80,123,82],{},[80,125,105],{}," までは？ 1個しか飛んでないから……1度？",[24,128,129,136,143],{"by":32},[11,130,131,132,135],{},"あ、そこは違くて、",[15,133,134],{},"始点も含めて"," 数えるんだよ。",[11,137,138,102,140,142],{},[80,139,82],{},[80,141,105],{}," で2つ。だから2度。",[89,144],{"highlight":145,"label":146,"notes":145,"octaves":94,"start-octave":95,"gap":96,"markings":147},"C4,D4","C → D","C4:1,D4:2",[24,149,150],{"by":26},[11,151,152,153,83,155,158],{},"え、じゃあ ",[80,154,82],{},[80,156,157],{},"C5"," は……1度になる？",[24,160,161,164],{"by":32},[11,162,163],{},"うん、1度。同じ音同士でも「0度」じゃなくて1度。",[11,165,166],{},"ちょっと不思議だけど、これが度の数え方なんだ。",[24,168,169],{"by":26},[11,170,171],{},"へえ、何個ぶん「離れた」じゃなくて、「○個目」って数える感じか。",[173,174,179],"ticket",{"label":175,"suffix":176,"title":177,"value":178},"Rule","個","度 = 音の数（始点込み）","始点+",[11,180,181],{},"C→E は3度（C, D, E で3つ）、C→G は5度（C, D, E, F, G で5つ）。同じ音同士でも1度（始点だけで1つ）。",[20,183,185],{"id":184},"数だけだと実はちょっとざっくり","数だけだと、実はちょっとざっくり",[24,187,188],{"by":26},[11,189,190,191,193,194,196],{},"じゃあ「3度ハモる」って、たとえば ",[80,192,82],{}," なら ",[80,195,86],{}," と一緒に鳴らせばいいの？",[24,198,199,202,206,210],{"by":32},[11,200,201],{},"基本はそう。でも実は、同じ「3度」のなかにも、響きが2つあるんだよね。",[89,203],{"highlight":91,"label":204,"notes":91,"octaves":94,"start-octave":95,"duration":205},"C と E","1.5",[89,207],{"highlight":208,"label":209,"notes":208,"octaves":94,"start-octave":95,"duration":205},"C4,D#4","C と E♭",[11,211,212],{},"どっちも文字で数えれば C, D, E の3つで「3度」。でも半音1つぶん、後ろのほうが近い。",[24,214,215],{"by":26},[11,216,217],{},"あー、後ろのほう、ちょっと暗い感じ。",[24,219,220,231],{"by":32},[11,221,222,223,226,227,230],{},"そう、それ。前者を ",[15,224,225],{},"長3度","、後者を ",[15,228,229],{},"短3度"," って呼ぶ。",[11,232,233],{},"数で大きい枠（3度）を、質（長／短）で中の細かさを表してる感じなんだ。",[24,235,236],{"by":26},[11,237,238],{},"じゃあ「5度」とかも、いろんな5度があるってこと？",[24,240,241],{"by":32},[11,242,243,244,247],{},"うん。",[15,245,246],{},"完全5度","、減5度、増5度、ってある。ふつう「5度」って言うときは完全5度を指すことが多いけどね。",[24,249,250],{"by":26},[11,251,252],{},"そっか、5度って実は1種類じゃないのか。",[173,254,259],{"label":255,"suffix":256,"title":257,"value":258},"Quality","半音","長 ⇄ 短 = 半音1つ","+1",[11,260,261],{},"同じ「3度」でも、長3度と短3度は半音1つぶん違う。数（度）で大きい枠を、質（長／短／完全）で半音単位の細かさを表す。",[263,264,265,272,282,288],"qa-grid",{},[266,267,269],"qa-card",{"question":268},"長・短・完全って、どう違うの？",[11,270,271],{},"音程の「質」の呼び方だよ。1度・4度・5度・8度には「完全」が、2度・3度・6度・7度には「長／短」が付く。同じ数でも質で半音1つぶん変わる。",[266,273,275],{"question":274},"数えるとき、黒鍵は？",[11,276,277,278,281],{},"度は ",[15,279,280],{},"音名の文字（C, D, E, ...）"," で数えるよ。だから C と E♭ も、文字としては C, D, E の3つで「3度」。半音の数は質（長／短）のほうで区別する。",[266,283,285],{"question":284},"黒鍵から数えるときは？",[11,286,287],{},"「F#」と呼ぶか「G♭」と呼ぶかで数える文字が変わるよ。F# → A は F, G, A で3度、G♭ → B♭ は G, A, B で3度。物理的には同じ鍵盤でも、音名で書き分ける。",[266,289,291],{"question":290},"8度ってあるの？",[11,292,293],{},"あるよ。1オクターブ上の同名音（C→C）は8度。完全8度って呼ぶ。",{"title":37,"searchDepth":38,"depth":38,"links":295},[296,297],{"id":116,"depth":38,"text":116},{"id":184,"depth":38,"text":185},[299],"入門","「3度ハモる」「5度跳ぶ」の「度」。音と音のあいだを、音の数で数える単位。始点も含めるのがポイント。",{},"\u002Fnodes\u002Fdegree",[304,307,310],{"to":305,"by":32,"text":306},"note-name","度は「音名で数える」のがミソだから、まず音名の記事を押さえておくと楽だよ。",{"to":308,"by":26,"text":309},"interval","度って数え方の話だけど、「音と音の距離」っていうのは音程の話と一緒。先に音程を読んでおくと、度の話がつながりやすいかも。",{"to":311,"by":32,"text":312},"enharmonic","ここで「数え方の基本」を読んだら、次は黒鍵の名前の話に進むと、もう一段ロジックが見えるよ。",{"prerequisite":314,"extends":315},[305],[308,311,316,317],"triad","scale",{"title":59,"description":37},"nodes\u002Fdegree",[321,299],"Theory","Degree","urFHC4lGr6HKfPGbRfIqbJDc2Lz-qEkO2vecdNLES6o",{"id":325,"title":326,"body":327,"description":37,"domains":604,"draft":44,"extension":45,"lead":606,"meta":607,"navigation":48,"path":608,"relatedNotes":609,"relations":613,"seo":616,"stem":617,"tags":618,"titleEn":619,"__hash__":620},"nodes\u002Fnodes\u002Fenharmonic.md","黒鍵から度を数える",{"type":8,"value":328,"toc":599},[329,334,342,347,356,361,365,393,398,402,407,432,442,453,458,467,471,488,499,504,529,534,546,551,560,565,574,579],[24,330,331],{"by":26},[11,332,333],{},"ね、前に「黒鍵から数えるときは F♯ か G♭ かで違う」って言ってたよね。同じ鍵盤なのに、なんで両方つかうの？",[24,335,336,339],{"by":32},[11,337,338],{},"あー、それね。同じ場所の鍵盤でも、文脈によって名前が違うんだ。",[11,340,341],{},"そして名前が違うと、数え方も変わる。",[24,343,344],{"by":26},[11,345,346],{},"名前が変わると……数え方も？",[24,348,349],{"by":32},[11,350,351,352,355],{},"うん。度は ",[15,353,354],{},"音名（C, D, E, ...）の文字"," で数えるから、F♯ から始めるか G♭ から始めるかで、出てくる文字が違うんだよね。",[24,357,358],{"by":26},[11,359,360],{},"ちょっと、実際にやってみたい。",[20,362,364],{"id":363},"f-から数えると","F♯ から数えると",[24,366,367,370,377],{"by":32},[11,368,369],{},"じゃあ F♯ から 3度上を数えてみよう。",[89,371],{"black-labels":372,"highlight":373,"label":374,"notes":375,"octaves":94,"start-octave":95,"gap":96,"markings":376},"true","F#4,A4","F♯ → G → A","F#4,G4,A4","F#4:1,G4:2,A4:3",[11,378,379,382,383,382,386,389,390,392],{},[80,380,381],{},"F#",", ",[80,384,385],{},"G",[80,387,388],{},"A"," の3つで3度。答えは ",[80,391,388],{},"。",[24,394,395],{"by":26},[11,396,397],{},"うん、シンプル。F の次が G、その次が A だから。",[20,399,401],{"id":400},"同じ場所g-から数えると","同じ場所、G♭ から数えると",[24,403,404],{"by":26},[11,405,406],{},"じゃあ G♭ から数えるとどうなるの？同じ鍵盤じゃないの？",[24,408,409,412,418],{"by":32},[11,410,411],{},"鍵盤は同じだよ。でも名前を G♭ にすると、数え方は G から始まる。",[89,413],{"black-labels":372,"highlight":414,"label":415,"notes":416,"octaves":94,"start-octave":95,"gap":96,"markings":417},"F#4,A#4","G♭ → A♭ → B♭","F#4,G#4,A#4","F#4:1,G#4:2,A#4:3",[11,419,420,382,423,382,426,389,429,431],{},[80,421,422],{},"Gb",[80,424,425],{},"Ab",[80,427,428],{},"Bb",[80,430,428],{},"。物理的には同じ場所だけど、書き方が違う。",[24,433,434],{"by":26},[11,435,436,437,102,439,441],{},"えっ、ちょっと待って。 ",[80,438,388],{},[80,440,428],{}," って、同じ鍵盤じゃないよね？",[24,443,444,450],{"by":32},[11,445,446,447,392],{},"そう、ここがポイント。F♯ からの3度上は A、G♭ からの3度上は B♭。",[15,448,449],{},"最後の鍵盤も違う",[11,451,452],{},"数え方が違うから、当然の結果なんだけどね。",[24,454,455],{"by":26},[11,456,457],{},"へえ……。名前で数えてるから、同じ場所から始めても別の景色になる。",[173,459,464],{"label":460,"suffix":461,"title":462,"value":463},"Naming","に決める","黒鍵は名前を選んでから数える","先",[11,465,466],{},"F♯ と G♭ は物理的に同じ鍵盤。でも度を数えるときは、まずどちらの文字（F か G か）として扱うかを決めてから。文字が決まれば、上に積む数え方も決まる。",[20,468,470],{"id":469},"同じ場所なのに度数が違う","同じ場所なのに、度数が違う？",[24,472,473],{"by":26},[11,474,475,476,83,478,481,482,83,484,487],{},"じゃあもうひとつ気になる。たとえば ",[80,477,82],{},[80,479,480],{},"Eb"," と、 ",[80,483,82],{},[80,485,486],{},"D#"," って、同じ場所だよね？",[24,489,490,493,496],{"by":32},[11,491,492],{},"そう、E♭ と D♯ は同じ鍵盤。",[89,494],{"black-labels":372,"highlight":208,"label":495,"notes":208,"octaves":94,"start-octave":95,"duration":205},"C と D♯（= E♭）",[11,497,498],{},"でも、名前で数えると……",[24,500,501],{"by":26},[11,502,503],{},"C, D♯ ……2つで2度？",[24,505,506,512,516,521,526],{"by":32},[11,507,508,509,230],{},"そう、C → D♯ は2度。",[15,510,511],{},"増2度",[89,513],{"black-labels":372,"highlight":208,"label":514,"notes":208,"octaves":94,"start-octave":95,"gap":96,"markings":515},"C → D♯ = 2度（増2度）","C4:1,D#4:2",[11,517,518,519,392],{},"一方、C → E♭ は文字で数えると C, D, E の3つで3度。",[15,520,229],{},[89,522],{"black-labels":372,"highlight":208,"label":523,"notes":524,"octaves":94,"start-octave":95,"gap":96,"markings":525},"C → E♭ = 3度（短3度）","C4,D4,D#4","C4:1,D4:2,D#4:3",[11,527,528],{},"鍵盤の場所も響きも全く同じ。でも、書き方ひとつで度数が違う。",[24,530,531],{"by":26},[11,532,533],{},"ええ、それは混乱する。",[24,535,536,543],{"by":32},[11,537,538,539,542],{},"これが「",[15,540,541],{},"異名同音","（いめいどうおん）」っていう現象なんだ。同じ音でも、文脈で名前を選ぶ。",[11,544,545],{},"スケールやコードのなかで「次の文字」がほしいときは E♭ を使うし、「半音上がった D」が欲しいときは D♯ を使う。状況で書き分ける。",[24,547,548],{"by":26},[11,549,550],{},"鍵盤で見ると「同じ音」だけど、音楽の文章のなかでは「別物」って感じか。",[24,552,553],{"by":32},[11,554,555,556,559],{},"そう、それが近いね。鍵盤じゃなく ",[15,557,558],{},"音名のロジック"," で度は決まるんだ。",[24,561,562],{"by":26},[11,563,564],{},"なるほど、鍵盤だけ見てても答えは出ないんだ。",[173,566,571],{"label":567,"suffix":568,"title":569,"value":570},"Enharmonic","≠ 同度","同じ音、違う名前 → 違う度","同音",[11,572,573],{},"C → D♯ と C → E♭ は同じ鍵盤・同じ響き。でも前者は「増2度」、後者は「短3度」と、度の数も質も違う。度は鍵盤じゃなく音名で決まる。",[24,575,576],{"by":26},[11,577,578],{},"そっか、鍵盤の「ここからここまで」じゃなくて、「この文字からこの文字まで」で考えるんだ。",[263,580,581,587,593],{},[266,582,584],{"question":583},"どっちの名前を使うかは、誰が決めるの？",[11,585,586],{},"曲のキー（調）や、その場の文脈で決まるよ。F♯ メジャーのスケールなら全部 ♯、G♭ メジャーなら全部 ♭、というふうに揃える。",[266,588,590],{"question":589},"「増2度」と「短3度」って響きは同じ？",[11,591,592],{},"ピアノで弾けば同じだよ。でも音楽の文章としては別物として扱う。マイナースケールでは「増2度」が出てきても「短3度」と書かない、みたいな使い分けがある。",[266,594,596],{"question":595},"C♯ と D♭ も同じ？",[11,597,598],{},"そう、同じ。物理的には全部の黒鍵に2つの名前がある（C♯\u002FD♭、D♯\u002FE♭、F♯\u002FG♭、G♯\u002FA♭、A♯\u002FB♭）。場面によって選ぶんだ。",{"title":37,"searchDepth":38,"depth":38,"links":600},[601,602,603],{"id":363,"depth":38,"text":364},{"id":400,"depth":38,"text":401},{"id":469,"depth":38,"text":470},[605],"発展","「度って何？」のつづき。同じ鍵盤でも F♯ と呼ぶか G♭ と呼ぶかで数え方が変わる、「名前の選び方」で音楽のロジックが決まる話。",{},"\u002Fnodes\u002Fenharmonic",[610],{"to":611,"by":32,"text":612},"degree","黒鍵を扱う前に、まずこっちの「度の数え方」を読んでおくと話が早いんだ。",{"prerequisite":614,"extends":615},[611],[],{"title":326,"description":37},"nodes\u002Fenharmonic",[321,605],"Degree on Black Keys","4kJq7ygVnbOQOnPraQt_2fiPZvdl6JWChIQY8984xgs",{"id":622,"title":623,"body":624,"description":37,"domains":809,"draft":44,"extension":45,"lead":810,"meta":811,"navigation":48,"path":812,"relatedNotes":813,"relations":818,"seo":821,"stem":822,"tags":823,"titleEn":824,"__hash__":825},"nodes\u002Fnodes\u002Finterval.md","音程って何？",{"type":8,"value":625,"toc":805},[626,634,659,664,668,673,687,695,713,718,724,728,736,748,753,758,763],[24,627,628,631],{"by":26},[11,629,630],{},"ね、ロン。この前歌ってたら「音程ズレてる」って言われたんだけど。",[11,632,633],{},"そもそも音程って何？",[24,635,636,639,646,652],{"by":32},[11,637,638],{},"あー、それね。音程っていうのは、ふたつの音の高さの距離のことなんだ。",[11,640,641,642,102,644,392],{},"たとえばこれ — ",[80,643,82],{},[80,645,385],{},[89,647],{"gap":648,"highlight":649,"label":650,"markings":651,"notes":649,"octaves":94,"start-octave":95},"0.5","C4,G4","C → G","C#4:1,D4:2,D#4:3,E4:4,F4:5,F#4:6,G4:7",[11,653,654,655,658],{},"鳴らしても、見ても、二つの音が「離れてる」のがわかるよね。その ",[15,656,657],{},"離れ方の大きさそのもの"," を、音程って呼ぶんだ。",[24,660,661],{"by":26},[11,662,663],{},"ふーん、距離か。",[20,665,667],{"id":666},"距離が同じなら同じ音程","距離が同じなら、同じ音程",[24,669,670],{"by":26},[11,671,672],{},"別の音から始めても、「同じ離れ方」って成り立つ？",[24,674,675,678,682],{"by":32},[11,676,677],{},"ちょっと聞いてみようか。",[89,679],{"gap":648,"highlight":91,"label":680,"markings":681,"notes":91,"octaves":94,"start-octave":95},"C → E","C#4:1,D4:2,D#4:3,E4:4",[89,683],{"gap":648,"highlight":684,"label":685,"markings":686,"notes":684,"octaves":94,"start-octave":95},"D4,F#4","D → F#","D#4:1,E4:2,F4:3,F#4:4",[24,688,689,692],{"by":26},[11,690,691],{},"……あ、似てる。同じ「離れ方」の感じ。",[11,693,694],{},"でもこれって、高さの差を引き算するみたいな話？",[24,696,697,700],{"by":32},[11,698,699],{},"あ、それはね、引き算じゃなくて、鍵盤の白＋黒の数で見るんだよ。",[11,701,702,704,705,707,708,704,710,712],{},[80,703,82],{}," → ",[80,706,86],{}," も ",[80,709,105],{},[80,711,381],{}," も、半音4つぶん。だから「同じ音程」って言えるんだ。",[24,714,715],{"by":26},[11,716,717],{},"ああ、鍵盤で数えるのか。",[173,719,721],{"label":175,"suffix":256,"title":720,"value":95},"同じ離れ方 = 同じ音程",[11,722,723],{},"鍵盤の白＋黒で半音4つぶん。C→E も D→F# も、始まる音が違っても距離は同じ。だから同じ音程として扱う。",[20,725,727],{"id":726},"音程ズレてるってほんとは","「音程ズレてる」って、ほんとは……？",[24,729,730,733],{"by":26},[11,731,732],{},"……じゃあちょっと待って。「音程ズレてる」って言われたんだけど、それ、変じゃない？",[11,734,735],{},"私が外したのは一個の音でしょ。",[24,737,738,745],{"by":32},[11,739,740,741,744],{},"そう、そこなんだよね。厳密にはそれ、",[15,742,743],{},"音高（おんこう）"," のほう。音そのものの高さのこと。",[11,746,747],{},"音程は「二つの音の関係」のことだから、ひとつだけだとズレようがないんだよね。",[24,749,750],{"by":26},[11,751,752],{},"じゃあ私が言われたのは「音高がズレてる」が正しいわけか。",[24,754,755],{"by":32},[11,756,757],{},"うん、ふだんは混ぜて使われるけどね。でも区別がつくと、音楽の話がぐっと見やすくなるんだよ。",[24,759,760],{"by":26},[11,761,762],{},"覚えとく。",[263,764,765,774,789],{},[266,766,768,771],{"question":767},"音程って、いつ使うの？和音？メロディ？",[11,769,770],{},"両方だよ。和音は音程を縦に積んだもの（三和音）、メロディは音程を横につないだもの（スケール）。",[11,772,773],{},"どっちにしても、出てくる音と音の関係を語るのが音程なんだ。",[266,775,777,780],{"question":776},"音程と「度数」って違うもの？",[11,778,779],{},"度数は音程の「数え方」の一部だよ。半音いくつ離れてるかを「2度」「3度」みたいな単位で表したもの。",[11,781,782,783,788],{},"音程＝距離そのもの、度数＝その距離の呼び方、というイメージかな（→ ",[784,785,787],"a",{"href":786},"\u002Fdegree","度数","）。",[266,790,792,802],{"question":791},"オクターブ違いの音も「音程」あるの？",[11,793,794,795,102,799,801],{},"あるよ。:note",[796,797,798],"span",{},"C4",[80,800,157],{}," は「8度（オクターブ）」って呼ぶ音程の関係。",[11,803,804],{},"名前は同じ C でも高さは違うから、距離はゼロじゃないんだ。",{"title":37,"searchDepth":38,"depth":38,"links":806},[807,808],{"id":666,"depth":38,"text":667},{"id":726,"depth":38,"text":727},[299],"音楽において「音程（インターバル）」とは、ふたつの音の高さの距離のこと。鳴らして、聴いて、その「離れ方」を確かめる。",{},"\u002Fnodes\u002Finterval",[814,816],{"to":305,"by":32,"text":815},"音と音の話に入る前に、まず「音の名前」を押さえておくと話が早いんだ。CDE で進めるからね。",{"to":611,"by":32,"text":817},"音程の「距離」を別の数え方で見るのが「度」だよ。半音いくつ離れてるかと、何度離れてるか。両方つかうと話が早いんだ。",{"prerequisite":819,"extends":820},[305],[611,316,317],{"title":623,"description":37},"nodes\u002Finterval",[321,299],"Intervals","2qchtSbPyRxo_HuWPmZ25ZLI4OXc-atNmgYMstg9ApM",{"id":827,"title":828,"body":829,"description":37,"domains":1065,"draft":44,"extension":45,"lead":1066,"meta":1067,"navigation":48,"path":1068,"relatedNotes":1069,"relations":1074,"seo":1077,"stem":1078,"tags":1079,"titleEn":1080,"__hash__":1081},"nodes\u002Fnodes\u002Fnote-name.md","ドレミと CDE、音の名前",{"type":8,"value":830,"toc":1061},[831,844,860,865,878,883,892,896,901,952,957,975,980,989,993,998,1016,1021,1036,1041],[24,832,833],{"by":26},[11,834,835,836,838,839,838,841,843],{},"ね、楽譜とかコードのところで ",[80,837,82],{}," とか ",[80,840,105],{},[80,842,86],{}," って文字よく見るんだけど、ドとかレとかとは別物？",[24,845,846,849],{"by":32},[11,847,848],{},"あー、それね。同じものを違う書き方してるだけなんだ。",[11,850,851,852,854,855,857,858,392],{},"ド = ",[80,853,82],{},"、レ = ",[80,856,105],{},"、ミ = ",[80,859,86],{},[24,861,862],{"by":26},[11,863,864],{},"あ、対応してるんだ。",[24,866,867,870,875],{"by":32},[11,868,869],{},"うん。鍵盤の白鍵に、ドレミの7音と、CDEFGAB の7文字が、それぞれ1対1で割り当てられてる。",[89,871],{"gap":96,"label":872,"notes":873,"octaves":94,"start-octave":95,"markings":874},"ド → レ → ミ → ファ → ソ → ラ → シ","C4,D4,E4,F4,G4,A4,B4","C4:ド,D4:レ,E4:ミ,F4:ファ,G4:ソ,A4:ラ,B4:シ",[11,876,877],{},"英語圏（と理論書）では CDEFGAB を使う。日本では日常的にはドレミ、楽譜やコード表記では CDE をよく使うんだよね。",[24,879,880],{"by":26},[11,881,882],{},"両方おぼえないといけないのか……。",[24,884,885],{"by":32},[11,886,887,888,891],{},"慣れたら自然に切り替わるよ。基本は ",[15,889,890],{},"同じ場所を指してるだけ"," っていう感覚で OK。",[20,893,895],{"id":894},"黒鍵にはかを足す","黒鍵には「♯」か「♭」を足す",[24,897,898],{"by":26},[11,899,900],{},"ちょっと、白鍵だけ7文字って、黒鍵には名前ないの？",[24,902,903,914,920,945],{"by":32},[11,904,905,906,909,910,913],{},"あ、あるよ。黒鍵には、隣の白鍵の名前に ",[15,907,908],{},"♯（シャープ）"," か ",[15,911,912],{},"♭（フラット）"," を足して呼ぶんだ。",[89,915],{"gap":96,"label":916,"notes":917,"octaves":94,"start-octave":95,"markings":918,"highlight":919},"C → C♯ → D","C4,C#4,D4","C4:1,C#4:2,D4:3","C#4",[11,921,922,102,924,926,927,930,931,936,937,930,940,392],{},[80,923,82],{},[80,925,105],{}," の間の黒鍵は、C から見て ",[15,928,929],{},"半音上"," だから ",[15,932,933],{},[80,934,935],{},"C#","、D から見て ",[15,938,939],{},"半音下",[15,941,942],{},[80,943,944],{},"Db",[11,946,947,948,951],{},"つまり、同じ鍵盤に ",[15,949,950],{},"2つの名前"," がある。",[24,953,954],{"by":26},[11,955,956],{},"え、同じものに2つも名前があるの？まぎらわしくない？",[24,958,959,962],{"by":32},[11,960,961],{},"うん、ちょっと不思議だよね。でも文脈で使い分けるんだ。",[11,963,964,966,967,969,970,966,972,974],{},[80,965,82],{}," を基準にしてる話なら ",[80,968,935],{}," を使うし、:note",[796,971,105],{},[80,973,944],{}," を使う。",[24,976,977],{"by":26},[11,978,979],{},"へえ、まわりの音との関係で決まるんだ。",[173,981,986],{"label":982,"suffix":983,"title":984,"value":985},"Note Name","名","白鍵7文字＋黒鍵に ♯／♭","7 + 2",[11,987,988],{},"音名は CDEFGAB の7文字（白鍵）が基本。黒鍵は隣の白鍵に ♯（半音上）か ♭（半音下）を足して呼ぶ。同じ黒鍵に2つの名前がつく。",[20,990,992],{"id":991},"_7文字でひと回り次のオクターブ","7文字でひと回り、次のオクターブ",[24,994,995],{"by":26},[11,996,997],{},"じゃあ、B（シ）の次はどうなるの？8文字目があるの？",[24,999,1000,1003,1009],{"by":32},[11,1001,1002],{},"ううん、B の次はまた C に戻る。鍵盤を右に進むと、CDEFGAB CDEFGAB …… と、7文字がぐるぐるくり返す。",[89,1004],{"gap":1005,"label":1006,"notes":1007,"octaves":1008,"start-octave":95},"0.2","2オクターブぶん","C4,D4,E4,F4,G4,A4,B4,C5,D5,E5,F5,G5,A5,B5","2",[11,1010,1011,1012,1015],{},"ひとまわりぶんの距離を「",[15,1013,1014],{},"オクターブ","」って呼ぶよ。",[24,1017,1018],{"by":26},[11,1019,1020],{},"同じ名前が、高さ違いでくり返してるんだ。",[24,1022,1023],{"by":32},[11,1024,1025,1026,1028,1029,1032,1033,1035],{},"うん。同じ ",[80,1027,82],{}," でも、低い ",[80,1030,1031],{},"C3"," と、高い ",[80,1034,157],{}," はオクターブ違いの仲間。",[24,1037,1038],{"by":26},[11,1039,1040],{},"ふーん、文字は12個もいらなくて、7文字でやりくりしてるのか。",[263,1042,1043,1049,1055],{},[266,1044,1046],{"question":1045},"なぜドレミと CDE の2つがあるの？",[11,1047,1048],{},"歴史的な経緯だよ。ドレミ系（イタリア語起源）は歌う時に使われ、CDE系（英語）は楽譜やコードの表記で使われることが多い。指してる音は同じ。",[266,1050,1052],{"question":1051},"ドイツ語の H って聞いたことあるけど？",[11,1053,1054],{},"ドイツ語圏では B のことを H と書くんだ（紛らわしいけど）。日常的には CDE 系で読めば困らないよ。",[266,1056,1058],{"question":1057},"日本語の「ハニホヘト」は？",[11,1059,1060],{},"日本古来の音名で、C=ハ、D=ニ、E=ホ、F=ヘ、G=ト、A=イ、B=ロ。「ハ長調」の「ハ」は C のことだよ。",{"title":37,"searchDepth":38,"depth":38,"links":1062},[1063,1064],{"id":894,"depth":38,"text":895},{"id":991,"depth":38,"text":992},[299],"「ド・レ・ミ」と「C・D・E」、書き方は違うけど、指してるものは同じ。音の名前のつけ方の話。",{},"\u002Fnodes\u002Fnote-name",[1070,1072],{"to":308,"by":32,"text":1071},"音の名前がわかったら、次は「音と音の関係」をつかむといい流れになるよ。",{"to":611,"by":32,"text":1073},"名前を使って「何度離れてる？」を数えるのが「度」の話。CDE で考えると速いんだ。",{"prerequisite":1075,"extends":1076},[],[308,611],{"title":828,"description":37},"nodes\u002Fnote-name",[321,299],"Note Names","CntqtWS5zLRzDHoQX6F4Bt2SN0pIrF33KtXcorJJPNQ",{"id":1083,"title":1084,"body":1085,"description":1089,"domains":1140,"draft":48,"extension":45,"lead":1141,"meta":1142,"navigation":48,"path":1143,"relatedNotes":50,"relations":50,"seo":1144,"stem":1145,"tags":1146,"titleEn":1147,"__hash__":1148},"nodes\u002Fnodes\u002Fprivacy.md","プライバシーポリシー",{"type":8,"value":1086,"toc":1133},[1087,1090,1093,1096,1099,1102,1105,1115,1118,1121,1124,1127,1130],[11,1088,1089],{},"このページは、Ring Rong（以下「当サイト」）が利用者の情報をどう扱うかを記載しています。",[20,1091,1092],{"id":1092},"アクセス解析について",[11,1094,1095],{},"当サイトでは、サイトの改善のため Google Analytics 等のアクセス解析ツールを利用することがあります。これらのツールは Cookie を使用して匿名のトラフィックデータを収集します。",[11,1097,1098],{},"Cookie の取得・利用を拒否したい場合は、ブラウザ側で Cookie 設定を変更してください。",[20,1100,1101],{"id":1101},"広告配信について",[11,1103,1104],{},"当サイトでは、Google AdSense などの第三者配信の広告サービスを利用することがあります。第三者配信事業者は Cookie を使用して、ユーザーがその Web サイトや他のサイトへのアクセスに関する情報に基づいて、適切な広告を表示します。",[11,1106,1107,1108,1114],{},"Google による Cookie の使用を無効にするには、 ",[784,1109,1113],{"href":1110,"rel":1111},"https:\u002F\u002Fwww.google.com\u002Fsettings\u002Fads",[1112],"nofollow","広告設定"," ページにアクセスしてください。",[20,1116,1117],{"id":1117},"著作権について",[11,1119,1120],{},"当サイトに掲載されている文章・図版・コードは、引用や私的利用の範囲を超える場合、事前にご連絡ください。",[20,1122,1123],{"id":1123},"免責事項",[11,1125,1126],{},"当サイトに掲載する内容については正確性に努めていますが、その内容の正確性・安全性を保証するものではありません。当サイトの利用によって生じたいかなる損害についても、当サイトは責任を負いません。",[20,1128,1129],{"id":1129},"プライバシーポリシーの変更について",[11,1131,1132],{},"当サイトは、必要に応じて本ポリシーを変更することがあります。重要な変更がある場合は、当ページにて告知します。",{"title":37,"searchDepth":38,"depth":38,"links":1134},[1135,1136,1137,1138,1139],{"id":1092,"depth":38,"text":1092},{"id":1101,"depth":38,"text":1101},{"id":1117,"depth":38,"text":1117},{"id":1123,"depth":38,"text":1123},{"id":1129,"depth":38,"text":1129},[43],"Ring Rong のプライバシーポリシー。アクセス解析・広告配信・Cookie の利用について。",{},"\u002Fnodes\u002Fprivacy",{"title":1084,"description":1089},"nodes\u002Fprivacy",[54],"Privacy Policy","2F0Ms6IYia024cRYA6xw6muFxafBRXcOfOpWGXafjZU",{"id":1150,"title":1151,"body":1152,"description":1156,"domains":1275,"draft":44,"extension":45,"lead":1276,"meta":1277,"navigation":48,"path":1278,"relatedNotes":50,"relations":50,"seo":1279,"stem":1280,"tags":1281,"titleEn":1283,"__hash__":1284},"nodes\u002Fnodes\u002Ftest.md","テスト記事",{"type":8,"value":1153,"toc":1263},[1154,1157,1169,1173,1181,1188,1195,1199,1202,1206,1209,1211,1214,1219,1222,1225,1227,1230,1237,1240,1244,1247,1250,1253,1257,1261],[11,1155,1156],{},"これは smoke test 用の最初の記事です。",[11,1158,1159,1160,1164,1165,1168],{},"ファイル名 ",[1161,1162,1163],"code",{},"test.md"," がそのまま URL ",[1161,1166,1167],{},"\u002Ftest"," になります。",[20,1170,1172],{"id":1171},"playbutton-の動作確認","PlayButton の動作確認",[11,1174,1175,1176],{},"C メジャー三和音： ",[1177,1178],"play-button",{"label":1179,"notes":1180},"C メジャー","C4,E4,G4",[11,1182,1183,1184],{},"セブンスコード： ",[1177,1185],{"label":1186,"notes":1187},"C7（MIDI番号指定）","60,64,67,70",[11,1189,1190,1191],{},"単音： ",[1177,1192],{"label":1193,"notes":1194,"duration":648},"A4 単音","A4",[20,1196,1198],{"id":1197},"keyboard-の動作確認","Keyboard の動作確認",[11,1200,1201],{},"2 オクターブの普通の鍵盤：",[1203,1204],"keyboard",{"octaves":1008,"start-octave":1205},"3",[11,1207,1208],{},"C メジャースケールをハイライト：",[1203,1210],{"octaves":94,"start-octave":95,"highlight":873},[20,1212,1213],{"id":1213},"新機能の動作確認",[1215,1216,1218],"h3",{"id":1217},"サイズ違いxs-sm-md-lg","サイズ違い（xs \u002F sm \u002F md \u002F lg）",[1203,1220],{"octaves":94,"start-octave":95,"size":1221},"xs",[1203,1223],{"octaves":94,"start-octave":95,"size":1224},"sm",[1203,1226],{"octaves":94,"start-octave":95,"size":45},[1203,1228],{"octaves":94,"start-octave":95,"size":1229},"lg",[1215,1231,1233,1234],{"id":1232},"範囲指定-rangec4-g5","範囲指定 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