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HTML

              
                <div id="player">
  <div class="circle" id="circle-cont">
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px" y="0px"
	 viewBox="0 0 500 500">
<path id="song-time" fill="none" d="M250,5c135.3,0,245,109.7,245,245S385.3,495,250,495S5,385.3,5,250C5,116.2,112.2,7.5,245.4,5
	h5.3"/>
</svg>
    <div id="song-content">
      <audio id="audio-player"></audio>
      <span id="artist">Artist</span>
      <span id="song">Song Title</span>
    </div>
    <div id="pause"></div>
  </div>
  <div id="playlist">
    <div id="scrollbar">
      <div id="bar"></div>
      <div id="marker"></div>
    </div>
    <ul></ul>
  </div>
</div>
<div id="contact">
  <p id="twitter"><i class="fa fa-twitter fa-lg"></i> twaffles</p>
  <p id="codepen"><i class="fa fa-codepen fa-lg"></i> acjdesigns</p>
</div>
              
            
!

CSS

              
                @import url(https://fonts.googleapis.com/css?family=Cabin:400,700);
$tan: #E6E3DA;
$orange: #F78A52;
$ltorg: #F3C56F;
$yellow: #FEFAD7;
@each $num, $height1, $height2, $height3 in (1, 7px, 2px, 15px), (2, 5px, 10px, 15px), (3, 15px, 5px, 10px){
  @keyframes waves#{$num}{
    0%{
       height: $height1;
       margin-top: -#{$height1};
    }
    10%{
       height: $height2;
       margin-top: -#{$height2};
    }
    20%{
       height: $height3;
       margin-top: -#{$height3};
    }
    30%{
       height: $height1;
       margin-top: -#{$height1};
    }
    40%{
       height: $height2;
       margin-top: -#{$height2};
    }
    50%{
       height: $height1;
       margin-top: -#{$height1};
    }
    60%{
       height: $height3;
       margin-top: -#{$height3};
    }
    70%{
       height: $height2;
       margin-top: -#{$height2};
    }
    80%{
       height: $height3;
       margin-top: -#{$height3};
    }
    90%{
       height: $height1;
       margin-top: -#{$height1};
    }
  }
  @-webkit-keyframes waves#{$num}{
    0%{
       height: $height1;
       margin-top: -#{$height1};
    }
    10%{
       height: $height2;
       margin-top: -#{$height2};
    }
    20%{
       height: $height3;
       margin-top: -#{$height3};
    }
    30%{
       height: $height1;
       margin-top: -#{$height1};
    }
    40%{
       height: $height3;
       margin-top: -#{$height3};
    }
    50%{
       height: $height2;
       margin-top: -#{$height2};
    }
    60%{
       height: $height1;
       margin-top: -#{$height1};
    }
    70%{
       height: $height3;
       margin-top: -#{$height3};
    }
    80%{
       height: $height1;
       margin-top: -#{$height1};
    }
    90%{
       height: $height2;
       margin-top: -#{$height2};
    }
    100%{
       height: $height1;
       margin-top: -#{$height1};
    }
  }
}
*{
  font-family: 'Cabin', sans-serif;
}
html,body{
  height: 100%;
  background: lighten($tan, 3%);
  margin: 0;
  overflow: hidden;
}
body{
  &:before{
    content: ' ';
    display: block;
    position: absolute;
    width: 0;
    height: 0;
    right: 0;
    bottom: 0;
    border-top: 0vw solid transparent;
    border-left: 25vw solid transparent;
    border-bottom: 150vh solid rgba(darken($tan, 10%), 0.5);
  }
  &:after{
    content: ' ';
    display: block;
    position: absolute;
    width: 0;
    height: 0;
    right: 0;
    top: 0;
    border-bottom: 0vw solid transparent;
    border-left: 95vw solid transparent;
    border-top: 82vh solid rgba(darken($tan, 10%), 0.5);
  }
}
#player{
  width: 600px;
  position: relative;
  height: 258px;
  overflow: hidden;
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
  z-index: 3;
}
.circle{
  border-radius: 50%;
}
#circle-cont{
  border: 4px solid $orange;
  width: 250px;
  height: 250px;
  background: $tan;
  position: absolute;
  z-index: 3;
  
  svg{
    z-index: 2;
    position: absolute;
    #song-time{
      stroke: $ltorg;
      stroke-width: 9.5px;
      stroke-dasharray: 2000;
      stroke-dashoffset: 2000;
    }
  }
  #song-content{
    width: 85%;
    height: 70%;
    position: absolute;
    top: 0;
    padding-top: 30%;
    left: 0;
    padding-left: 7.5%;
    padding-right: 7.5%;
    text-align: center;
    box-shadow: 0 0 0 4px $yellow inset;
    border-radius: 50%;
    z-index: 1;
    span{
      display: block;
      &#artist{
        font-weight: 700;
        margin-bottom: 5px;
      }
      &#song{
        font-size: 0.8em;
        color: darken($tan, 55%);
        text-transform: capitalize;
      }
    }
  }
  #pause{
    width: 23px;
    height: 25px;
    position: absolute;
    top: 65%;
    left: 50%;
    margin-left: -11.5px;
    z-index:4;
    display: none;
    &:before{
      content: ' ';
      display: block;
      height: 25px;
      width: 6px;
      background: $orange;
      position: absolute;
      top: 0;
      left: 0;
    }
    &:after{
      content: ' ';
      display: block;
      height: 25px;
      width: 6px;
      position: absolute;
      top: 0;
      right: 0;
      background: $orange;
    }
    &:hover{
      cursor: pointer;
      &:before{
        background: #DF7B46;
      }
      &:after{
        background: #DF7B46;
      }
    }
  }
  #play{
    	width: 0px; 
      height: 0px;
      z-index: 8;
      position: absolute;
      border-top: 15px solid transparent;
      border-bottom: 15px solid transparent;
      border-left: 20px solid $orange;
      top: 65%;
      left: 50%;
      margin-left: -10px;
    &:hover{
      border-left: 20px solid #DF7B46;
      cursor: pointer;
    }
  }
}
#playlist{
  height: 180px;
  width: 400px;
  background: $tan;
  box-shadow: 0 0 0 3px $orange inset, 0 0 0 7px $yellow inset;
  top: 50%;
  margin-top: -100px;
  left: 150px;
  padding: 10px 0;
  position: absolute;
  overflow: hidden;
  border-top-right-radius: 20px;
  border-bottom-right-radius: 20px;
  &:before{
    content: ' ';
    display: block;
    background-color: darken($tan, 5%);
    mix-blend-mode: multiply;
    width: 275px;
    height: 275px;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    margin-top: -137.5px;
    left: -160px;
    z-index:2;
  }
  ul{
    overflow-y: auto;
    overflow-x: hidden;
    margin: 0;
    padding:0;
    height: 100%;
    list-style-type: none;
    &::-webkit-scrollbar { 
        display: none; 
    }
  }
  li{
    a{
      display: block;
      width: 90%;
      font-size: 0.8em;
      padding: 0.4em 0 0.4em 125px;
      border-bottom: 1px solid darken($tan, 10%);
      box-sizing: border-box;
      overflow: hidden;
      white-space: nowrap;
      color: darken($tan, 55%);
      position: relative;
      &:hover{
        cursor: pointer;
        border-bottom: 1px solid darken($tan, 20%);
        color: #000;
      }
      &.active{
        .waves{
          content: '';
          display: block;
          position: absolute;
          right: 3%;
          top: auto;
          bottom: 5px;
          width: 3px;
          height: 9px;
          background: $orange;
          animation: waves2 forwards 2s infinite;
          &:before{
            content: '';
            display: block;
            position: absolute;
            left: -5px;
            top: auto;
            bottom: 0;
            width: 3px;
            height: 9px;
            background: $orange;
            animation: waves1 forwards 2s infinite;
          }
          &:after{
            content: '';
            display: block;
            position: absolute;
            left: auto;
            top: auto;
            bottom: 0;
            right: -5px;
            width: 3px;
            height: 9px;
            background: $orange;
            animation: waves3 forwards 2s infinite;
          }
        }
      }
    }
    &:last-child{
      a{
        border-bottom: 0;
      }
    }
  }
}
#scrollbar{
  height: 100%;
  width: 40px;
  right: 0;
  position: absolute;
  top: 0;
  z-index: 8;
  #bar{
    border-radius: 4px;
    height: 80%;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    position: absolute;
    width: 5px;
    background: darken($tan, 10%);
  }
  #marker{
    position: absolute;
    top: 10%;
    left: 50%;
    margin-left: -8px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: $ltorg;
    border: 2px solid $orange;
    box-shadow: 0 0 0 1px rgba($yellow, 0.5) inset, -1px 2px 0 0px rgba(darken($tan, 25%), 0.75);
    &:after{
      content: '';
      display: block;
      position: absolute;
      height: 5px;
      width: 5px;
      border-radius: 50%;
      top: 50%;
      left: 50%;
      transform: translateX(-50%) translateY(-50%);
      background: rgba($orange, 0.65);
    }
  }
}
#contact{
  position: absolute;
  bottom: 20px;
  left: 20px;
  p{
    margin: 5px 0;
    color: darken($tan, 55%);
    font-size: 14px;
    i{
      color: $orange;
      margin-right: 5px;
    }
  }
}
              
            
!

JS

              
                function getOffset(elapsedTime, fullTime, fullWidth){
  return ((elapsedTime*fullWidth)/fullTime)
}
function drawArc (id, songTime){
  var player = document.getElementById(id);
  if(!player.paused){
    var passedSecs = player.currentTime;
    var duration = player.duration;
    var passedTime = (passedSecs*100)/duration;
    var path = document.getElementById(songTime);
    var length = path.getTotalLength();
    var offset = (passedTime*length)/100;
    var dashOffset = length-offset;
    document.getElementById(songTime).style.strokeDashoffset = -dashOffset;
  }
}
var currDurr;
var xhr = new XMLHttpRequest();
xhr.open('GET', 'https://api.soundcloud.com/playlists/4350720?client_id=d7a1ecf371228b24c36e4c031255f0fa&enable_api=true');
	xhr.send(null);
	xhr.onreadystatechange = function () {
		var DONE = 4; // readyState 4 means the request is done.
		var OK = 200; // status 200 is a successful return.
		if (xhr.readyState === DONE) {
			if (xhr.status === OK){
        SC.initialize({
          client_id: 'd7a1ecf371228b24c36e4c031255f0fa'
        }); 
        var json = JSON.parse(xhr.responseText);
				var tracks = json.tracks;
        for(var i = 0; i<tracks.length; i++){
          var playlist = document.querySelector('#playlist ul');
          var songLi = document.createElement('li');
          var song = document.createElement('a');
          
          // var songSpan = document.createElement('span');
          song.id = tracks[i].id;
          song.dataset.trackId = tracks[i].id;
          song.dataset.songLength = tracks[i].duration;
          song.dataset.albumArt = tracks[i].artwork_url;
          song.dataset.artist = tracks[i].user.username;
          song.className = 'song';
          song.innerHTML = tracks[i].title;
          // song.appendChild(songSpan);
          songLi.appendChild(song);
          playlist.appendChild(songLi);
        }
        var songs = document.querySelectorAll('.song');
        for(var i = 0; i<songs.length; i++){
          songs[i].addEventListener('click', function(e){
            var songLink, songStream;
            currDurr = e.target.dataset.songLength;  
            SC.get('/tracks/'+e.target.id+'?enable_api=true').then(function(song){
              if(document.getElementById('play')!==null){
                document.getElementById('play').id = 'pause';
              }
   if(document.getElementById('pause')!==null){
     document.getElementById('pause').style.display = 'block';
   }
              document.getElementById('artist').innerHTML = song.user.username;
              document.getElementById('song').innerHTML = song.permalink;
  songLink = song.stream_url;
   var audio = document.getElementById('audio-player');
   audio.src = songLink + '?client_id=d7a1ecf371228b24c36e4c031255f0fa';
   audio.play();
   drawArc('audio-player', 'song-time');
   setInterval(function(){
     return drawArc('audio-player', 'song-time');
   }, 1000);
    var allLinks = document.querySelectorAll('.song');
    for(var j = 0; j<allLinks.length; j++){
      if(allLinks[j].childNodes[1] !== undefined){
        var childEl = allLinks[j].childNodes[1];
        childEl.parentNode.removeChild(childEl);
      }
      allLinks[j].className = 'song';
    }
    e.target.className += ' active';
    var activeSpan = document.createElement('span');
    activeSpan.className = 'waves';
    e.target.appendChild(activeSpan);
            });
          });
        }
			}
		} else {
			//Error Message Goes Here
		}
	}
  window.onload = function(){
    document.body.addEventListener('click', function(e){
      if(e.target.id === 'pause'){
        document.getElementById('audio-player').pause();
        e.target.id = 'play';
      } else if(e.target.id === 'play'){
        document.getElementById('audio-player').play();
        e.target.id = 'pause';
      }
    });
   var mouseDown = false, markerdown = false;
    var marker = document.getElementById('marker');
    document.addEventListener('mousedown', function(e){
      e.preventDefault();
      mouseDown = true;
      if(e.target.id === 'marker'){
        markerdown = true;
      }
    });
    document.addEventListener('mousemove', function(e){
      if(mouseDown && !markerdown){ document.getElementById('player').style.top = (e.pageY) + 'px';
                    document.getElementById('player').style.left = e.pageX + 'px';
      }
    });
    document.addEventListener('mouseup', function(e){
      mouseDown = false;
      markerdown = false;
    });
    document.getElementById('scrollbar').addEventListener('mousemove', function(e){
      e.preventDefault();
    if(markerdown){
          var scrollBar = document.getElementById('bar');
          var barStyles = getComputedStyle(scrollBar);
          var markerStyles = getComputedStyle(marker);
          
          var barHeight = Number(barStyles.height.replace('px',''));
          var barTop = Number(barStyles.top.replace('px',''));
          var barBottom = Number(barStyles.bottom.replace('px',''));
          var scrollDiff = (e.pageY -document.getElementById('player').offsetTop + barTop)-16;
      if(scrollDiff>0 && scrollDiff < (barHeight-8)){
        var scrollPerc = (scrollDiff*100)/(barHeight-8);
        var playList = document.getElementById('playlist').childNodes[3];
        var getScrollTop = (Number(getComputedStyle(playList).height.replace('px',''))*scrollPerc)/100;
        playList.scrollTop = getScrollTop/2;
        marker.style.top = (scrollDiff + 16) + 'px';
      } 
    }
  });
  }
  document.querySelector('#playlist ul').addEventListener('scroll', function(e){
    var list = e.target;
    var maxScroll = list.scrollHeight - Number(getComputedStyle(list).height.replace('px',''));
    var percentScrolled = ((list.scrollTop+8)*100)/maxScroll;
    var barHeight = Number(getComputedStyle(document.getElementById('bar')).height.replace('px',''));
    var fromBarTop = ((percentScrolled*(barHeight-12))/100);
    var marker = document.getElementById('marker');
    marker.style.top = fromBarTop + 'px';
  });
              
            
!
999px

Console