Those of you who use Live regularly probably know that the program excels at letting you tweak your sounds into oblivion while leaving the original audio files intact. This is known as nondestructive editing. You can change all sorts of things about a clip, such as transposition, sample offset, volume envelopes and more, all with the reassuring fact in mind that you're never doing irreparable harm to your source files (some recordings are one in a million- especially if you have bad backup skills!). Nondestructive editing is also efficient when it comes to hard drive utilization, since you can have multiple clips in your Set with different settings, all referencing a single source file.