Euphony is a web-based MIDI player and visualizer inspired by MIDITrail. Features: - Rotatable and zoomable scene. - Drag and drop MIDI files to play. - Large collection of classical music. Instruction: - Click and drag mouse to rotate. - Scroll mouse wheel to zoom in or out. - Click on entries of left panel to play. - Drag and drop MIDI files into browser to play. Note: This demo is for Chrome only.