Yes, that's the PDF I linked to in my post. If you look at the calendar on the left of p. 2, the dates of Indietracks (26, 27, 28) are highlighted in pink. Look to the timetables to the right of that and anything highlighted in pink says 'Special Timetable: Operates on special events - check for details.'
Where are those details?
I think you're right in that the Butterley to Swanwick daytime journeys are correct in the blue timetable A (though there doesn't seem to be any Swanwick to Butterley journeys which I presume is because they're a special service).I recall the hour+ wait between some daytime trains which encouraged walking the path. But what about the train times for Friday night?
The walk is nice, yes, as long as you're not on a tight schedule. But it can be dangerous when it's been raining heavily and it's very slippery and muddy along the single path, as we discovered last year trying to cling to branches and ending up covered in scratches on our arms and hands. It's also not feasible to do when carrying something heavy, such as an electric guitar in a flight case.
****I've just seen Marianthi's post.**** Is there at least a draft or expected timetable, Marianthi?