canvas level canvas index of the first object to be loadbanged. this corresponds to the output of [gf/canvas_count] just before the new objects have been created. a way to do loadbang incrementally, only on the newest objects of a canvas, instead of only a whole canvas at a time. in this case, just sending a loadbang message to a whole canvas is wrong, because it will send a loadbang to objects that have already received a loadbang. dynamically-patched objects that need to be loadbanged are [loadbang], [args], some other externals, subpatches that contain anything that needs to be loadbanged, and abstractions that contain anything that needs to be loadbanged.