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@@ -0,0 +1,175 @@
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+<!DOCTYPE html>
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+<html>
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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,chrome=1">
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+ <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=0,viewport-fit=cover">
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+ </head>
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+ <style>
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+ body {
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+ --spacing: .75rem;
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+ font-family: sans-serif;
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+ line-height: 1.5;
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+ text-align: center;
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+ margin: .75rem;
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+ padding-bottom: 2rem;
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+ color: hsl(269,19%,30%);
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+ background-color: hsla(32,100%,85%,.35);
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+ background-image: url("data:image/svg+xml;charset=utf8,%3Csvg width='100%25' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.4'/%3E%3C/filter%3E%3C/defs%3E%3C!-- %3Cpath filter='url(%23a)' opacity='.3' d='M0 0h1200v256H0z'/%3E--%3E%3Crect filter='url(%23a)' opacity='.3' width='100%25' height='100%25'/%3E%3C/svg%3E");
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+}
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+@media (min-width: 48em) {
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+ body {--spacing: 1rem;}
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+}
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+ body * {box-sizing: border-box;}
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+ h1, h2, h3 {font-weight:100;}
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+ h1 {margin: 1em 0 .5em;}
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+ .group {
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+ border: 1px solid #fff;
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+ background-color: rgba(255,255,255,.25);
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+ padding: .5rem 1rem;
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+ margin: 1rem auto;
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+ }
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+
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+ .url {
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+ display: flex;
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+ width: 100%;
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+ margin: 1rem auto;
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+ }
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+ [class*="_label"] {
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+ position: relative;
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+ white-space: nowrap;
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+ margin-right: .5em;
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+ min-width: 4em;
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+ }
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+ [class*="_label"] > span {
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+ display: block;
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+ position: relative;
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+ top: 50%;
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+ transform: translatey(-50%);
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+ }
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+ [class*="_input"] {
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+ display: inline-block;
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+ line-height: 1;
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+ width: 100%;
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+ margin: 0;
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+ padding: .25rem .5rem;
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+ font: inherit;
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+ border: 1px solid #fff;
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+ background-color: rgba(255,255,255,.5);
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+ }
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+
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+
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+ .upload {
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+ display: flex;
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+ width: 100%;
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+ margin: 1rem auto;
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+ }
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+
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+ .player_audio {
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+ width: 100%;
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+ }
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+ .player_display {
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+ font-size: 1.25rem;
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+ }
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+ .tempo {
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+ display: flex;
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+ width: 100%;
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+ margin: 1rem auto;
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+ }
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+ .tempo_display {
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+ font-weight: 700;
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+ min-width: 3em;
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+ margin-left: .5em;
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+ }
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+ </style>
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+<body>
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+ <main>
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+ <div class=group>
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+ <div class=upload>
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+ <label class=upload_label for=upload_input><span>上传</span></label>
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+ <input id=upload_input class=upload_input type=file accept="audio/*">
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+ </div>
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+
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+ </div>
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+
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+ <div class=group>
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+
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+ <div class=player>
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+ <h3 class=player_display>SJE40W8.mp3</h3>
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+ <audio class=player_audio controls src="./SJE40W8.mp3">
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+ <track id=player-chords kind=captions srclang=en>
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+ </audio>
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+ </div>
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+
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+ <div class=tempo>
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+ <label class=tempo_label for=tempo_input>速度</label>
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+ <input class=tempo_input id=tempo_input type=range value=1 min=0.25 max=2.5 step=0.01>
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+ <span class=tempo_display></span>
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+ </div>
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+
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+ </div>
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+
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+ </main>
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+
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+<script>
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+
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+const player = document.querySelector('.player_audio');
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+const playerDisplay = document.querySelector('.player_display');
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+
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+const changeTempo = function () {
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+ player.playbackRate = tempoInput.value;
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+ tempoDisplay.textContent = tempoInput.value;
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+};
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+
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+const changeSongURL = function (e) {
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+ player.src = urlInput.value;
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+ let filename = player.src.split('\\').pop().split('/').pop();
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+ playerDisplay.textContent = filename;
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+}
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+
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+const changeSongFile = function (e) {
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+ const target = e.currentTarget;
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+ const file = target.files[0];
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+ let reader;
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+
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+ if (target.files && file) {
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+ reader = new FileReader();
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+ reader.onload = function (e) {
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+ player.setAttribute('src', e.target.result);
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+ playerDisplay.textContent = file.name;
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+ // player.play(); // auto play on load
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+ }
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+ reader.readAsDataURL(file);
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+ }
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+};
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+
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+// Get the song from:
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+// const urlInput = document.getElementById('url_input');
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+// urlInput.addEventListener("change", changeSongURL, false);
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+
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+
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+// Or upload an MP3:
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+const uploadInput = document.getElementById('upload_input');
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+uploadInput.addEventListener('change', changeSongFile, false);
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+
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+
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+// Playback tempo
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+const tempoInput = document.getElementById('tempo_input');
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+tempoInput.addEventListener("change", changeTempo, false);
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+const tempoDisplay = document.querySelector('.tempo_display');
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+tempoDisplay.textContent = tempoInput.value;
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+
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+
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+
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+// Chords from:
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+// const vtt = document.getElementById('url_input').value.replace('.mp3', '.vtt');
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+// const player_chords = document.getElementById('player-chords');
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+
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+// player_chords.src = vtt;
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+// player.src = urlInput.value;
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+// changeSongURL();
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+changeTempo();
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+</script>
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+
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+</body>
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+</html>
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