This visualization shows the tempo of the top 15 most-streamed songs on Spotify, displayed as a horizontal bar chart. The bar lengths correspond to each song’s tempo value, with song titles listed on the y-axis and tempo ticks on the x-axis. Built with React and D3 v5, the code uses `d3.csv` to load remote data, `scaleBand` and `scaleLinear` for scaling, and renders bars and axes as SVG elements computed from the data.