Basic Concepts
Basic Concepts
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Using this mechanism, there will be no loss of editing steps, as all steps and branches are
accessible. Nevertheless, an ever-growing undo tree will require lots of memory and may
be capable of slowing down the system. This can be avoided by making a certain element
the new root of the tree (elements prior to that position will be lost in this case) or by
deleting inactive branches of the undo tree.
Within a branch, the mechanism is quite similar to the ordinary list-based undo, providing
backward and forward navigation via undo or redo. The extended tree-based functional-
ities emerge when navigating to other branches.
The C15 undo mechanism tracks dierent user actions. Parameter selection, edits to
parameters, preset recalls and edits to presets and banks can be undone. However, the
modulation mechanism is not integrated into the undo mechanism, as it is part of the
user performance.
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