Thanks! I hadn’t fully appreciated the difference between record and playback buffers, and that the AED could inspect both, and that they’d differ. I can see I need to re-read the manual (again).
13.1 ACCESSING THE AUDIO EDITOR
Press [AED] to access the audio editor. The audio editor can also be accessed in a number of other ways.
13.1.1 ACCESS FROM THE QUICK ASSIGN MENU
Open the QUICK ASSIGN menu by double-clicking a [TRACK] key. In the Flex or Static sample slot list, select the sample you wish to edit and press [FUNC] + [BANK] to open it in the audio editor.
13.1.2 ACCESS FROM THE SRC SETUP MENU
Open the SRC SETUP menu of a track containing a Flex or Static machine by either double-clicking the [SRC] key or pressing [FUNC] + [SRC]. Then navigate to the Flex or Static sample slot list, select the sample you wish to edit and press [FUNC] + [BANK] to open it in the audio editor.
13.1.3 ACCESS FROM TRACKS AND TRACK RECORDERS
By pressing [TRACK] + [BANK] the sample assigned to the machine of the track will be opened in the audio editor. Note that the track must contain a Flex or Static machine for this shortcut to work.
Samples captured by the track recorders can be opened directly in the audio editor. First select the track whose recorder buffer should be edited by pressing the relevant [TRACK] key. Then press any of the [REC1/2] keys + [BANK] to open the recorder buffer sample in the audio editor.
The audio editor can also be accessed from the RECORDING SETUP EDIT menu. Access this menu by pressing [FUNC] + [BANK] while either RECORDING SETUP menu is active.
FWIW, I find the manual too terse. It’s so dense that I can only take in a very short amount at a time before needing to go and practice (a lot) with that one chunk.