Spotify draft

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    svg {border: 1px dashed black}
  </style>
</head>

<body>
  <script>
    // base dimensions
      const margin = {top: 20, right: 20, bottom: 20, left: 30}
      const width = 700 - margin.left - margin.right
      const height = 450 - margin.top - margin.bottom
      
      // svg canvas
      var svg = d3.select("body").append("svg")
      						.attr("width", width + margin.left + margin.right)
      						.attr("height", height + margin.top + margin.bottom)
      						.append("g")
      						.attr("transform","translate("+margin.left+ "," +margin.top+")")
      
    
    // read the data
    d3.json("data.json", function(error, data) {
      if (error) return console.warn(error);
      
      // nest data by genre
      var dataGenres =  d3.nest().key(d => d["top genre"])
      										.entries(data)
      
      console.log(dataGenres)
      
      // labels for rows and columns
      var nums =[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24]
      // var nums = [1,2,3,4,5,6]
      
      //var yrows = ['art1','art2','art3','art4','art5','art6']
      var yrows = d3.max(data, d=> d["artist"])
      console.log(yrows)
      
      
      // x scales and axis
      var x = d3.scaleBand().range([0,width])
      					.domain(nums)
      					.padding(0.01)
      
      svg.append("g")
        .attr("transform", "translate(0," + height + ")").call(d3.axisBottom(x))
      
      
       // y scale and axis
      var y = d3.scaleBand().range([height, 0])
      					.domain(yrows)
      					.padding(0.01)
      
      svg.append("g")
      	.call(d3.axisLeft(y))
      
      
      
      // add rects
//       svg.selectAll()
//       	.data(data)
//       	.enter().append('rect')
//       	.attr('x', (d, i) => i)
//       	.attr('y', (d, i) => i)
//       	.attr('width', 10)
//       	.attr('height', 10)
      
    
    });

</script>
</body>

https://d3js.org/d3.v4.min.js