This donut chart displays the number of songs per language, showing the top nine languages individually and aggregating the rest into an "Others" slice. Clicking the "Others" segment zooms in to reveal a secondary pie chart with all remaining languages. The visualization uses D3 v6 with the `pie()` and `arc()` generators, scales ordinal colors with `d3.schemeTableau10`, and implements interactive tooltips via mouse events. Data is loaded from a local JSON file, and the SVG is rendered within a Vue-based environment.