This visualization displays the relationship between danceability and energy for popular music tracks from 2010, with circle size encoding popularity and color-coded genres. Built with React and D3.js v7, the scatter plot uses `scaleLinear` for both axes, `scaleOrdinal` with `schemeCategory10` for genre colors, and renders as SVG. The chart includes axis labels, grid lines, a legend, and tooltips. Data is loaded from a local CSV file and mapped to numeric values for the visual encoding.