TASCAM 2488neo 657 − RecorderHere’s an extremely simplified example that extremelyunlikely that you’d work this way, but it shows the prin-ciples involved:Lead vocal 2nd takeLead vocal correctionLead vocalRetake of guitar solo bridge sectionGuitar soloPiano (second part)PianoScratch vocal takeBass lineCopy and paste drum loopBasic drum loopStart songLead vocal 3rd takeThis is the history of a recording session so far. Supposethat you decide that items 11 and 12 in the list are not need-ed (in other words, the first take (9) with its correction (10)have been overwritten by 11 and 12, but you feel that theoriginal take (9) with its correction (10) has more energy,so you want to retrieve it:1 Press the UNDO key.2 Use the dial to scroll down to the step to which youwant to go back (here it's 10).3 Press YES/ENTER. All steps up to the selected stepare now undone.Now you have the track back again. If you pressthe UNDO key, you’ll see that there’s a check markbeside 10 - this shows that this is the “undo mark.”Lead vocal 2nd takeLead vocal correctionLead vocalRetake of guitar solo bridge sectionGuitar soloPiano (second part)PianoScratch vocal takeBass lineCopy and paste drum loopBasic drum loopStart songLead vocal 3rd takeThe actions above this "undo" line are undone.Notice that we can still see items 11 and 12. This isbecause we can still redo them, if we decide that thefirst vocal take (9 and 10) was not so great after all.To redo them is just as simple as undoing them:press the UNDO key, highlight the step to which youwant to return, and press YES/ENTER.Items above the “undo” line are visible and you can redothem until you perform another action after the undo oper-ation. For instance, if you decided that you wanted to haveanother go at repairing the lead guitar bridge…You could undo all items up to item 7:Lead vocal 2nd takeLead vocal correctionLead vocalRetake of guitar solo bridge sectionGuitar soloPiano (second part)PianoScratch vocal takeBass lineCopy and paste drum loopBasic drum loopStart songLead vocal 3rd take…and then re-record the guitar bridge.After this, though, if you wanted to restore the vocal trackswhich we’d recorded, you would not be able to. The newrecording would replace everything above the line.All the previous items are now erased:Retake of guitar solo bridge sectionGuitar soloPiano (second part)PianoScratch vocal takeBass lineCopy and paste drum loopBasic drum loopStart songAll the later actions arepermanently erasedAn undo/redo example