Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/jig/JohnJohnson_ChoiceCollectionVol8-VMP.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9397-JohnJohnson_ChoiceCollectionVol8-VMP.ps) >>/Users/jc/w/tmp/Tune-9397-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/jig/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
Tune-9397-JohnJohnson_ChoiceCollectionVol8-VMP.abc 172 ABC music file with the extracted tune(s)
Tune-9397-JohnJohnson_ChoiceCollectionVol8-VMP.ps 6 PostScript
Tune-9397-JohnJohnson_ChoiceCollectionVol8-VMP.txt 172 Plain-text file with the extracted tune(s)
Tune-9397-get.log 4604 Log file, useful mostly for debugging
Tune-93970-get.log 2786 Log file, useful mostly for debugging
Tune-93975-3123-Peggy_Bawn.abc 989 ABC music file with the extracted tune(s)
Tune-93975-3123-Peggy_Bawn.pdf 23275 Portable Data Format
Tune-93975-3123-Peggy_Bawn.ps 39033 PostScript
Tune-93975-3123-Peggy_Bawn.txt 989 Plain-text file with the extracted tune(s)
Tune-93975-get.log 5418 Log file, useful mostly for debugging
Tune-93978-get.log 3978 Log file, useful mostly for debugging
These files should be available for 24 hours.