Simple emulation of piano player on website.
// The keys and notes variables store the piano keys
const keys = ['c-key', 'd-key', 'e-key', 'f-key', 'g-key', 'a-key', 'b-key', 'high-c-key', 'c-sharp-key', 'd-sharp-key', 'f-sharp-key', 'g-sharp-key', 'a-sharp-key'];
const notes = [];
keys.forEach(function(key){
notes.push(document.getElementById(key));
})
// Write named functions that change the color of the keys below
function keyPlay(event){
event.target.style.backgroundColor='#6df0c2';
}
function keyReturn(event){
event.target.style.backgroundColor='';
}
// Write a named function with event handler properties
function eventAssignment(note){
note.onmousedown=function(){
keyPlay(event);
}
note.onmouseup=function(){
keyReturn(event);
}
}
// Write a loop that runs the array elements through the function
notes.forEach(eventAssignment);
// These variables store the buttons that progress the user through the lyrics
let nextOne = document.getElementById('first-next-line');
let nextTwo = document.getElementById('second-next-line');
let nextThree = document.getElementById('third-next-line');
let startOver = document.getElementById('fourth-next-line');
// This variable stores the '-END' lyric element
let lastLyric = document.getElementById('column-optional');
// These statements are "hiding" all the progress buttons, but the first one
nextTwo.hidden = true;
nextThree.hidden = true;
startOver.hidden= true;
// Write anonymous event handler property and function for the first progress button
nextOne.onclick=function(){
nextTwo.hidden=false;
nextOne.hidden=true;
document.getElementById('letter-note-five').innerHTML='D';
document.getElementById('letter-note-six').innerHTML='C';
}
// Write anonymous event handler property and function for the second progress button
nextTwo.onclick=function(){
nextThree.hidden=false;
nextTwo.hidden=true;
document.getElementById('word-five').innerHTML='DEAR';
document.getElementById('word-six').innerHTML='FRI-';
lastLyric.style.display='inline-block';
document.getElementById('letter-note-three').innerHTML='G';
document.getElementById('letter-note-four').innerHTML='E';
document.getElementById('letter-note-five').innerHTML='C';
document.getElementById('letter-note-six').innerHTML='B';
}
// Write anonymous event handler property and function for the third progress button
nextThree.onclick=function(){
startOver.hidden=false;
nextThree.hidden=true;
document.getElementById('word-one').innerHTML='HAP-';
document.getElementById('word-two').innerHTML='PY';
document.getElementById('word-three').innerHTML='BIRTH';
document.getElementById('word-four').innerHTML='DAY';
document.getElementById('word-five').innerHTML='TO';
document.getElementById('word-six').innerHTML='YOU';
document.getElementById('letter-note-one').innerHTML='F';
document.getElementById('letter-note-two').innerHTML='F';
document.getElementById('letter-note-three').innerHTML='E';
document.getElementById('letter-note-four').innerHTML='C';
document.getElementById('letter-note-five').innerHTML='D';
document.getElementById('letter-note-six').innerHTML='C';
lastLyric.style.display='none';
}
// This is the event handler property and function for the startOver button
startOver.onclick = function() {
nextOne.hidden = false;
startOver.hidden = true;
document.getElementById('word-one').innerHTML = 'HAP-';
document.getElementById('letter-note-one').innerHTML = 'G';
document.getElementById('word-two').innerHTML = 'PY';
document.getElementById('letter-note-two').innerHTML = 'G';
document.getElementById('word-three').innerHTML = 'BIRTH-';
document.getElementById('letter-note-three').innerHTML = 'A';
document.getElementById('word-four').innerHTML = 'DAY';
document.getElementById('letter-note-four').innerHTML = 'G';
document.getElementById('word-five').innerHTML = 'TO';
document.getElementById('letter-note-five').innerHTML = 'C';
document.getElementById('word-six').innerHTML = 'YOU!';
document.getElementById('letter-note-six').innerHTML = 'B';
}
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="style.css">
</head>
<body>
<p class='title'>Piano Player</p>
<p id='demo'>Follow the song below to play the piano.</p>
<section class="piano">
<section id='c-key' class="key">
<section class='keynote'>C</section>
</section>
<section id='c-sharp-key' class="black-key">
<section class='black-keynote'>C#</section>
</section>
<section id='d-key' class="key">
<section class='keynote'>D</section>
</section>
<section id='d-sharp-key' class="black-key">
<section class='black-keynote'>D#</section>
</section>
<section id='e-key' class="key">
<section class='keynote'>E</section>
</section>
<section id='f-key' class="key">
<section class='keynote'>F</section>
</section>
<section id='f-sharp-key' class="black-key">
<section class='black-keynote'>F#</section>
</section>
<section id='g-key' class="key">
<section class='keynote'>G</section>
</section>
<section id='g-sharp-key' class="black-key">
<section class='black-keynote'>G#</section>
</section>
<section id='a-key' class="key">
<section class='keynote'>A</section>
</section>
<section id='a-sharp-key' class="black-key">
<section class='black-keynote'>A#</section>
</section>
<section id='b-key' class="key">
<section class='keynote'>B</section>
</section>
<section id='high-c-key' class="key">
<div class='keynote'>C</div>
</section>
</section>
<section id='lyrics'>
<section id='column-one'>
<section id="word-one">HAP-</section>
<section id="letter-note-one">G</section>
</section>
<section id='column-two'>
<section id="word-two">PY</section>
<section id="letter-note-two">G</section>
</section>
<section id='column-three'>
<section id="word-three">BIRTH-</section>
<section id="letter-note-three">A</section>
</section>
<section id='column-four'>
<section id="word-four">DAY</section>
<section id="letter-note-four">G</section>
</section>
<section id='column-five'>
<section id="word-five">TO</section>
<section id="letter-note-five">C</section>
</section>
<section id='column-six'>
<section id="word-six">YOU</section>
<section id="letter-note-six">B</section>
</section>
<section id='column-optional' class='column-optional'>
<section id="word-optional">END</section>
<section id="letter-note-optional">A</section>
</section>
<button id="first-next-line">Line 2</button>
<button id="second-next-line">Line 3</button>
<button id="third-next-line">Line 4</button>
<button id="fourth-next-line">Reset</button>
</section>
<script src="main.js"></script>
</body>
</html>
body{
margin: 0;
padding: 0;
font-family: sans-serif;
background: #ffc63f;
}
.title{
font-size: 36px;
margin-top: 10px;
margin-bottom: 0px;
padding: 0;
color: #141c3a;
text-transform: uppercase;
letter-spacing: 2px;
text-align: center;
}
#demo{
text-align: center;
font-size: 18px;
margin-top: 15px;
color: #141c3a;
letter-spacing: 1px;
font-style: italic;
}
.piano{
width: 305px;
height: 210px;
display: block;
margin: 0 auto;
background-color: #fd4d3f;
margin-top: 30px;
}
.key{
width: 30px;
height: 200px;
display: inline-block;
border: solid #141c3a 2px;
box-shadow: 2px 5px;
background-color: white;
color: #141c3a;
}
.black-key{
width: 25px;
height: 100px;
display: inline-block;
background-color: #141c3a;
color: white;
position: absolute;
margin-left: -12px;
padding: 0px;
}
.keynote{
width: 20px;
height: 20px;
text-align: center;
display: block;
margin: 0 auto;
margin-top: 175px;
color: #141c3a;
}
.black-keynote{
width: 20px;
height: 20px;
text-align: center;
display: block;
margin: 0 auto;
margin-top: 75px;
}
#lyrics{
width: 400px;
height: 240px;
display: block;
margin: 0 auto;
padding-left: 20px;
margin-top: 50px;
background-color: #fd4d3f;
}
#column-one, #column-two, #column-three, #column-four, #column-five, #column-six, #column-optional{
width: 90px;
display: inline-block;
text-align: center;
margin-top: 30px;
}
#column-optional{
display: none;
}
#word-one, #word-two, #word-three, #word-four, #word-five, #word-six, #word-optional{
background-color: white;
width: 90px;
height: 25px;
padding-top: 10px;
letter-spacing: 5px;
color: #141c3a;
}
#letter-note-one, #letter-note-two, #letter-note-three, #letter-note-four, #letter-note-five, #letter-note-six, #letter-note-optional{
color: white;
width: 25px;
height: 25px;
margin-top: 15px;
margin-left: 35px;
}
#first-next-line, #second-next-line, #third-next-line, #fourth-next-line{
width: 80px;
height: 40px;
font-size: 16px;
position: absolute;
margin-top: 30px;
margin-left: 10px;
border: none;
background-color: #ffc63f;
color: #141c3a;
letter-spacing: 1px;
cursor: pointer;
}