Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Brodie/JohnJohnson_ChoiceCollectionVol8-VMP.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4028-JohnJohnson_ChoiceCollectionVol8-VMP.ps) >>/Users/jc/w/tmp/Tune-4028-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Brodie/JohnJohnson_ChoiceCollectionVol8-VMP.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_40286.log 466812 Log file, useful mostly for debugging
Tune-4028-JohnJohnson_ChoiceCollectionVol8-VMP.abc 175 ABC music file with the extracted tune(s)
Tune-4028-JohnJohnson_ChoiceCollectionVol8-VMP.ps 6 PostScript
Tune-4028-JohnJohnson_ChoiceCollectionVol8-VMP.txt 175 Plain-text file with the extracted tune(s)
Tune-4028-get.log 15437 Log file, useful mostly for debugging
Tune-40280-get.log 9525 Log file, useful mostly for debugging
Tune-40281-get.log 3992 Log file, useful mostly for debugging
Tune-40283-get.log 7590 Log file, useful mostly for debugging
Tune-40285-get.log 22596 Log file, useful mostly for debugging
Tune-40286-get.log 7843 Log file, useful mostly for debugging
Tune-40287-get.log 17120 Log file, useful mostly for debugging
Tune-40288-get.log 20364 Log file, useful mostly for debugging
Tune-40289-get.log 17408 Log file, useful mostly for debugging
These files should be available for 24 hours.