Space Bebop

Develop an interactive particle-jazz web application named SPACE BEBOP. Build a WebGL-powered visualization rendering a dynamic nebula composed of 280,000 flowing particles, set against a backdrop of traversable spiral galaxies that create an immersive space travel experience as users navigate through the scene. Implement hand gesture recognition functionality to map user movements directly to audio controls: waving gestures trigger melody playback, finger curling activates an air piano interface, and clenched fists generate chord burst effects that produce visible shockwave interactions across the stardust particle field.
Synthesize all audio elements entirely in real time within the browser environment, including walking bass lines, swing ride cymbal patterns, and sharp piano stabs, with no pre-recorded audio samples used. Lock the core tempo to a consistent 132 BPM to maintain a steady swing rhythm throughout the user session. Design a progression system where every note and audio input generated by the user moves the in-app camera deeper into the layered nebula environments, unlocking new visual and sonic variations as the session advances.
Eliminate barriers to entry by removing requirements for physical instruments or prior musical skill, frame the user experience to emphasize that no input is "incorrect" within the app's creative framework. Include a 3-2-1 countdown trigger at the start of each session to prompt users to begin interacting and jamming. Ensure the entire application runs smoothly in standard desktop and mobile browsers with low latency between gesture input and corresponding visual and audio feedback.