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<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="utf-8"> |
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<meta http-equiv="x-ua-compatible" content="ie=edge"> |
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<meta name="viewport" content="width=device-width, initial-scale=1"> |
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<link rel="icon" href="favicon.ico" type="image/x-icon" /> |
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<link rel="stylesheet" type="text/css" href="../abcjs-audio.css"> |
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<link rel="stylesheet" href="examples-styles.css" /> |
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<title>Output Transposition</title> |
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<script src="../dist/abcjs-basic.js" type="text/javascript"></script> |
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<script type="text/javascript"> |
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var editor; |
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var renderParams = { responsive: "resize", selectTypes: false }; |
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var outputEl; |
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var abcEl; |
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var currentAbc = "" |
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window.onload = function () { |
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abcEl = document.querySelector("#abc"); |
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outputEl = document.querySelector("#transposed"); |
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visualTransposeEl = document.querySelector(".transpose"); |
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editor = new ABCJS.Editor("abc", { |
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canvas_id: "paper", |
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warnings_id: "warnings", |
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abcjsParams: renderParams, |
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}); |
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visualTransposeEl.addEventListener("change", paramChanged); |
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paramChanged(false); |
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}; |
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function paramChanged(userAction) { |
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var visualObj = editor.tunes |
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var abc = abcEl.value |
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var steps = visualTransposeEl.value |
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var output = ABCJS.strTranspose(abc, visualObj, steps) |
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outputEl.innerText = output |
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var newVisualObj = ABCJS.renderAbc("paper2", output, renderParams) |
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if (userAction) |
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createSynth(newVisualObj[0]) |
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} |
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var synthControl |
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function createSynth(visualObj) { |
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if (!synthControl) { |
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synthControl = new ABCJS.synth.SynthController(); |
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synthControl.load("#audio", null, { displayRestart: true, displayPlay: true, displayProgress: true }); |
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} |
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var midiBuffer = new ABCJS.synth.CreateSynth(); |
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midiBuffer.init({ |
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visualObj: visualObj, |
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}).then(function (response) { |
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synthControl.setTune(visualObj, true).then(function (response) { |
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}).catch(function (error) { |
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console.warn("Audio problem:", error); |
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}); |
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}).catch(function (error) { |
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console.warn("Audio problem:", error); |
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}); |
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} |
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</script> |
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<style> |
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@media only screen and (min-width: 700px) { |
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.container { |
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max-width: 1200px; |
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} |
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} |
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.input, |
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.output { |
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display: flex; |
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column-gap: 10px; |
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} |
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.input>div, |
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.output>div { |
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width: 50%; |
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} |
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#abc, |
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#transposed { |
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font-family: monaco, monospace; |
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font-size: 1em; |
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height: 300px; |
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} |
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#transposed { |
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border: 1px solid #888; |
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padding: 10px; |
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margin-top: 0; |
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overflow: auto; |
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} |
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label { |
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margin-top: 10px; |
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display: block; |
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} |
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</style> |
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</head> |
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<body> |
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<header> |
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<img src="https://paulrosen.github.io/abcjs/img/abcjs_comp_extended_08.svg" alt="abcjs logo"> |
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<h1>Output Transposition</h1> |
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</header> |
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<div class="container"> |
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<main> |
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<p>This demonstrates transposing an ABC string and retrieving that transposed string. Type any valid ABC string in the "input string" area and choose your transposition in half-steps below the input string. The resultant ABC string, transposed audio, and transposed notation are shown on the right side of the page.</p> |
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<section class="input"> |
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<div> |
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<h2>Input String</h2> |
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<textarea aria-label="ABC string" id="abc" spellcheck="false"> |
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X: 1 |
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T: Cooley's |
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M: 4/4 |
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L: 1/8 |
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R: reel |
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K: Em |
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V: Melody |
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|:D2|EB{c}BA B2 EB|~B2 AB dBAG|FDAD BDAD|FDAD dAFD| |
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EBBA B2 EB|B2 AB defg|afe^c dBAF|DEFD E2:| |
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|:gf|eB B2 efge|eB B2 gedB|A2 FA DAFA|A2 FA defg| |
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eB B2 eBgB|eB B2 defg|afe^c dBAF|DEFD E2:| |
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</textarea> |
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<label>Transpose: |
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<input |
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class="transpose" |
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type="number" |
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min="-24" |
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max="24" |
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step="1" |
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value="0"> |
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</label> |
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</div> |
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<div> |
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<h2>Output String</h2> |
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<pre id="transposed"></pre> |
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<div id="audio"></div> |
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</div> |
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</section> |
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<div id="warnings"></div> |
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<section class="output"> |
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<div> |
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<h2>Original Output</h2> |
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<div id="paper" class="visible-background"></div> |
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</div> |
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<div> |
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<h2>Transposed Output</h2> |
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<div id="paper2" class="visible-background"></div> |
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</div> |
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</section> |
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</main> |
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</div> |
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</body> |
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</html> |
