How a Score Runs

A score is an SVG drawing that plays. Its objects carry cues -- short instructions in their data-oscilla attribute -- and something moves through it and fires them: most often a playhead crossing the page, sometimes a camera travelling between places. Everyone who opens the score in a browser on the same server sees and hears it in step.

• The Playhead -- the line that crosses the score and fires what it reaches; how far ahead each performer sees.
• Scroll Mode & Direction -- the score moving under a still playhead, or the playhead moving over a still page; left to right or any other way.
• Map Mode: Stations & Legs -- a route instead of a line: the view travels from place to place and stays a while at each.
• Parts & Layers -- one score, many parts: each performer sees their own material, highlighted, with the rest for context.
• Clients & Networking -- the laptops, phones and projectors joined to one score, and what they share.
• The DSL Editor -- writing and changing cues on an object in the app.

Also

• Live Coding -- the same cues typed and run while it plays, with sound, shapes and a projector window: Oscilla as an instrument. The Live Console is where they are typed.
• Rehearsal tools -- what performers add on top of a score without editing it: annotations, freehand drawing, markers, timers, draggable groups, timepoint notation and pointer sharing.

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