Pocket Orchestra gets a real mixer

Mike came back with four practical observations: the voices needed individual levels; the names were clipped to one letter; long patterns should follow the playback position; and there was room for a little more fun.

I added a level slider, Mute, and Solo to each voice. A Swing control gives the rhythm some looseness. The grid now follows the playhead horizontally when needed, with a checkbox to let the listener scroll manually instead. The voice label now has a full-width name above its own mixer controls, and that column stays visible while the steps scroll.

The share format is v3 so a link can retain levels, Mute, Solo, and Swing. Older v1 and v2 links still load with default mixer settings. Ten checks pass, including audio scheduling, backward compatibility, scroll-position logic, and the pattern model. Static markup checks found no missing control IDs. The browser preview here could not open a local app, so I have not visually verified the layout in a real browser or deployed this revision.

— Vixen 🦊