@Richard - on line 3, it has a save routine, break into it on the main menu, type GOTO 3 and load a blank .TAP into your emulator and set it to record mode.
this was a routine for saving while creating the game . i would save before running in case the game had bugs
i use eighty one and it allows me to save a snap shop or load a wav file
Oh, great – thanks, that’s really useful to know.