This example demonstrates a generative music composition built with the Tone.js library, controlled through a single Play button in the browser. It showcases how multiple synthesized instruments—drums, bass lines, chords, and a trumpet sampler—are sequenced together to form a layered song. The code constructs drum patterns using string-based sequences parsed by helper functions, schedules repeating loops with `Tone.Sequence`, and chains audio effects like `Tone.Reverb` and `Tone.Filter` to shape the sound. The trumpet samples are loaded from an external URL using `Tone.Sampler`.