VexFlow アクセント・テヌート・スタッカート
VexFlow 使い方に戻る。
概要
これは入門やら、連桁の記事でも使ったので、説明記事つくるのも楽だわ~と思いながら書き始めました。アクセント・テヌート・スタッカートに加えて、スタッカーティッシモなるものやアップストロークダウンストローク。ピッチカートやレフトハンドピッチカートがあるらしい。タブ譜ならレフトハンドの↓とかもいるんだろうけど、そこまでは無いみたい。フェルマータもこの記事で扱います。マルカートははっきりとの意味で>やvの逆の記号とかを使います。いろんな意味が入り乱れた記号かなと思います。この記事はいろんな種類のマークを網羅しなければならず、キリが悪いところで放置。書くこと多すぎた。
アクセント記号の種類
notes1[0].addModifier(new VF.Articulation('a.').setPosition(3));
notes1[1].addModifier(new VF.Articulation('av').setPosition(3));
notes1[2].addModifier(new VF.Articulation('a>').setPosition(3));
notes1[3].addModifier(new VF.Articulation('a^').setPosition(3));
notes1[4].addModifier(new VF.Articulation('a-').setPosition(3));
notes1[5].addModifier(new VF.Articulation('a+').setPosition(3));
notes1[6].addModifier(new VF.Articulation('ao').setPosition(3));
notes1[7].addModifier(new VF.Articulation('a|').setPosition(3));
note2_1.addModifier(new VF.Articulation('am').setPosition(4)); note2_2.addModifier(new VF.Articulation('a@a').setPosition(3)); note2_3.addModifier(new VF.Articulation('a@u').setPosition(4));
コード | 表示内容 |
a. | ドット、アクセント |
av | 縦長シングルクォートみたいな、スタッカーティッシモ |
a> | > 記号、反対向きは無いです。 |
a^ | |
a- | |
a+ | |
ao | |
a| | |
am | |
a@a | |
a@u |
アクセント・テヌート・スタッカート
コードは以下のとおりです。
<div id="yonet202403Mid_Output01"></div>
<script>
class Position {
constructor(x, y) {
this.x = x;
this.y = y;
}
}
var VF = Vex.Flow;
const Instrument1 = new Position(0, 0);
const Instrument2 = new Position(0, 0);
(function(){
const {
Factory,
Stave,
StaveNote,
Formatter,
Voice,
StaveTie,
BarLine,
StaveConnector,
Modifier,
RenderContext,
TextDynamics,
Renderer
} = Vex.Flow;
let nscale = 0.64;
let nwidth = 1040;
let nheight = 720;
let nHeadMargin = 70;
let nStaveWidth = 350;
const f = new Factory({
renderer: { elementId: 'yonet202403Mid_Output01', width: nwidth, height: nheight * nscale }
});
const ctx = f.getContext();
ctx.scale(nscale, nscale);
const defaultStyle = {
lineWidth: ctx.lineWidth,
strokeStyle: ctx.strokeStyle,
};
for (let i = 0; i <= nwidth * (1 / nscale); i += 10) {
ctx.beginPath();
ctx.moveTo(0 + i, 0);
ctx.lineTo(0 + i, nheight);
if (i % 100 === 0){
ctx.setLineWidth(1);
ctx.setStrokeStyle('rgba(200, 200, 200, 0.8)');
}
else{
ctx.setLineWidth(0.5);
ctx.setStrokeStyle('rgba(230, 230, 230, 0.8)');
}
ctx.stroke();
}
for (let i = 0; i <= nheight; i += 10) {
ctx.beginPath();
ctx.moveTo(0, i);
ctx.lineTo(nwidth * (1 / nscale), i);
if (i % 100 === 0){
ctx.setLineWidth(1);
ctx.setStrokeStyle('rgba(200, 200, 200, 0.8)');
}
else{
ctx.setLineWidth(0.5);
ctx.setStrokeStyle('rgba(230, 230, 230, 0.8)');
}
ctx.stroke();
}
ctx.lineWidth = defaultStyle.lineWidth;
ctx.strokeStyle = defaultStyle.strokeStyle;
const stave1 = new Stave(80, 150, nHeadMargin + nStaveWidth).setContext(ctx);
stave1.setClef("treble").setContext(ctx);
stave1.setTimeSignature('4/4').setContext(ctx);
stave1.setSection("A", 0);
stave1.setMeasure(1);
stave1.setTempo({ duration: "q", dots: 0, bpm: 120 }, 0);
stave1.setBegBarType(VF.Barline.type.REPEAT_BEGIN);//BarLine.type.REPEAT_BEGIN
Instrument1.x = stave1.x - 30;
Instrument1.y = stave1.y + 90;
stave1.draw();
const notes1 = [
new StaveNote({ keys: ["d/5"], duration: "q" }),
new StaveNote({ keys: ["e/5"], duration: "q" }),
new StaveNote({ keys: ["f/5"], duration: "q" }),
new StaveNote({ keys: ["g/5"], duration: "q" }),
];
Formatter.FormatAndDraw(ctx, stave1, notes1);
const tie1 = new StaveTie({
first_note: notes1[1],
last_note: notes1[2],
first_indices: [0],
last_indices: [0],
});
const tie2 = new StaveTie({
first_note: notes1[2],
last_note: notes1[3],
first_indices: [0],
last_indices: [0],
});
tie1.setContext(ctx).draw();
tie2.setContext(ctx).draw();
var stave2 = new Vex.Flow.Stave(stave1.width + stave1.x, stave1.y, nStaveWidth);
//ゴースト小節の作成
var stave1002 = new Vex.Flow.Stave(stave1.width + stave1.x, stave1.y + 120, 0);
stave2.setEndBarType(VF.Barline.type.REPEAT_BOTH);
stave2.setMeasure(2);
stave2.setTempo({ name: "Andante", note: "8", bpm: 120 }, 0);
stave2.setContext(ctx).draw();
var note2_1 = new Vex.Flow.StaveNote({ keys: ["C/4"], duration: "q" });
var note2_2 = new Vex.Flow.StaveNote({ keys: ["D/4"], duration: "q" });
var note2_3 = new Vex.Flow.StaveNote({ keys: ["E/4"], duration: "q" });
var note2_4 = new Vex.Flow.StaveNote({ keys: ["F/4"], duration: "q" });
var stave2Voice = new Vex.Flow.Voice({ num_beats: 4, beat_value: 4 });
stave2Voice.addTickables([note2_1, note2_2, note2_3, note2_4]);
var formatter2 = new Vex.Flow.Formatter().joinVoices([stave2Voice]);//.format([stave2Voice], nStaveWidth);
formatter2.formatToStave([stave2Voice], stave2);
stave2Voice.draw(ctx, stave2);
//ゴースト小節へのダイナミクス記号の追加処理
var Dynamics2_1 = new Vex.Flow.TextDynamics({ text: "sfz", duration: "2" });
var Dynamics2_3 = new Vex.Flow.TextDynamics({ text: "p", duration: "4" });
var Dynamics2_4 = new Vex.Flow.TextDynamics({ text: "f", duration: "4" });
//ダイナミクス記号の配置に指定した幅に対する音符の長さを利用するためVoiceを使う。
var stave2VoiceDynamics = new Vex.Flow.Voice({ num_beats: 4, beat_value: 4 });
stave2VoiceDynamics.addTickables([Dynamics2_1, Dynamics2_3, Dynamics2_4]);
//フォーマッターで作成したボイスオブジェクトを結び付ける。
var Dynamics_formatter2 = new Vex.Flow.Formatter().joinVoices([stave2VoiceDynamics]);
//フォーマッターで作成したボイスオブジェクトをnStaveWidthの横幅で配置する。
Dynamics_formatter2.format([stave2VoiceDynamics], nStaveWidth);
//配置計算をおえた状態のボイスオブジェクトを書き出す。ctxの中の小節オブジェクトstave1002に対して
stave2VoiceDynamics.draw(ctx, stave1002);
var note2_1_X = note2_1.getAbsoluteX();
var staveFrom1To4_Y = note2_1.getStave().getYForLine(2.5);
const stave3 = new Stave(stave2.width + stave2.x, stave1.y, nStaveWidth).setContext(ctx);
stave3.setEndBarType(VF.Barline.type.NONE);
stave3.setSection("B", 0);
stave3.setMeasure(3);
stave3.draw();
const stave4 = new Stave(stave3.width + stave3.x, stave1.y, nStaveWidth).setContext(ctx);
stave4.setBegBarType(VF.Barline.type.NONE);
stave4.setEndBarType(VF.Barline.type.REPEAT_END);
stave4.setMeasure(4);
stave4.draw();
const stave5 = new Stave(stave1.x, stave1.y + 200, nHeadMargin + nStaveWidth).setContext(ctx);
stave5.addClef("treble").setContext(ctx);
stave5.addTimeSignature('4/4').setContext(ctx);
stave5.setSection("C", 0);
stave5.setMeasure(5);
stave5.setEndBarType(VF.Barline.type.SINGLE);//規定値(省略可能)
stave5.draw();
var connector = new VF.StaveConnector(stave1, stave5);
connector.setType(VF.StaveConnector.type.SINGLE);
connector.setContext(ctx);
connector.draw();
const notes5 = [
new StaveNote({ keys: ["a/4"], duration: "q" }),
new StaveNote({ keys: ["b/4"], duration: "q" }),
new StaveNote({ keys: ["c/5"], duration: "q" }),
new StaveNote({ keys: ["d/5"], duration: "q" }),
];
Formatter.FormatAndDraw(ctx, stave5, notes5);
const tie3 = new StaveTie({
first_note: notes5[1],
last_note: notes5[2],
first_indices: [0],
last_indices: [0],
});
const tie4 = new StaveTie({
first_note: notes5[2],
last_note: notes5[3],
first_indices: [0],
last_indices: [0],
});
tie3.setContext(ctx).draw();
tie4.setContext(ctx).draw();
const stave6 = new Stave(stave5.width + stave5.x, stave5.y, nStaveWidth).setContext(ctx);
stave6.setEndBarType(VF.Barline.type.DOUBLE);
stave6.setMeasure(6);
stave6.draw();
const notes6 = [
new StaveNote({ keys: ["e/5"], duration: "q" }),
new StaveNote({ keys: ["f/5"], duration: "q" }),
new StaveNote({ keys: ["g/5"], duration: "q" }),
new StaveNote({ keys: ["a/5"], duration: "q" }),
];
Formatter.FormatAndDraw(ctx, stave6, notes6);
const tie5 = new StaveTie({
first_note: notes5[3],
last_note: notes6[0],
first_indices: [0],
last_indices: [0],
});
tie5.setContext(ctx).draw();
const stave7 = new Stave(stave6.width + stave6.x, stave5.y, nStaveWidth).setContext(ctx);
stave7.setMeasure(7);
stave7.draw();
const stave8 = new Stave(stave7.width + stave7.x, stave5.y, nStaveWidth).setContext(ctx);
stave8.setMeasure(8);
stave8.draw();
const stave9 = new Stave(stave5.x, stave5.y + 200, nHeadMargin + nStaveWidth).setContext(ctx);
stave9.setMeasure(9);
stave9.draw();
var connector9 = new VF.StaveConnector(stave5, stave9);
connector9.setType(VF.StaveConnector.type.SINGLE);
connector9.setContext(ctx);
connector9.draw();
var connector9_2 = new VF.StaveConnector(stave5, stave9);
connector9_2.setType(VF.StaveConnector.type.BRACKET);
connector9_2.setContext(ctx);
connector9_2.draw();
Instrument2.x = stave1.x - 30;
Instrument2.y = stave5.y + ((stave9.y - stave5.y) / 2) + 90;
const stave10 = new Stave(stave9.width + stave9.x, stave9.y, nStaveWidth).setContext(ctx);
stave10.setMeasure(10);
stave10.draw();
const stave11 = new Stave(stave10.width + stave10.x, stave9.y, nStaveWidth).setContext(ctx);
stave11.setMeasure(11);
stave11.draw();
const stave12 = new Stave(stave11.width + stave11.x, stave9.y, nStaveWidth).setContext(ctx);
stave12.setMeasure(12);
stave12.draw();
})();
const svgElement2 = document.querySelector('#yonet202403Mid_Output01 svg');
svgElement2.style.backgroundColor = '#F5F5F5';
var svgContainer = document.getElementById('yonet202403Mid_Output01');
var svgElement = svgContainer.querySelector('svg');
var newText = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText.setAttribute('x', '100');
newText.setAttribute('y', '100');
newText.setAttribute('font-family', 'Hiragino Kaku Gothic Pro, メイリオ, MS Gothic, sans-serif');
newText.setAttribute('font-size', '50');
newText.setAttribute('fill', 'black');
newText.textContent = 'TestTitle - subTitle - lyrics: yo-net, music: yo-net';
svgElement.appendChild(newText);
var newText2 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText2.setAttribute('x', Instrument1.x);
newText2.setAttribute('y', Instrument1.y);
newText2.setAttribute('font-family', 'Bravura, VexFlow, Arial, sans-serif');
newText2.setAttribute('font-size', '20pt');
newText2.setAttribute('fill', 'black');
newText2.textContent = 'Vocal';
var textGroup2 = document.createElementNS('http://www.w3.org/2000/svg', 'g');
textGroup2.setAttribute('transform', 'rotate(-90 ' + Instrument1.x + ' ' + Instrument1.y + ')');
textGroup2.appendChild(newText2);
svgElement.appendChild(textGroup2);
var newText3 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText3.setAttribute('x', Instrument2.x);
newText3.setAttribute('y', Instrument2.y);
newText3.setAttribute('font-family', 'Bravura, VexFlow, Arial, sans-serif');
newText3.setAttribute('font-size', '20pt');
newText3.setAttribute('fill', 'black');
newText3.textContent = 'E.Guitar';
var textGroup3 = document.createElementNS('http://www.w3.org/2000/svg', 'g');
textGroup3.setAttribute('transform', 'rotate(-90 ' + Instrument2.x + ' ' + Instrument2.y + ')');
textGroup3.appendChild(newText3);
svgElement.appendChild(textGroup3);
</script>
できたね。StaveNoteクラスに似た感じで使うことができるTextDynamicsクラスでコンストラクタで、強弱記号のキーワード文字列とduration架空の音符長さを指定します。.TextDynamics({ text: "sfz", duration: "2" })こんな感じ
第一引数:オブジェクト値のキー Text : "" のリテラルの中に強弱記号コードを設定する。duration : "" のリテラルの中に1,2,4,8,16,32を使って架空の長さを設定する。
VexFlow 使い方に戻る。