Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/_1001/JohnJohnson_ChoiceCollectionVol8-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9936-JohnJohnson_ChoiceCollectionVol8-V1.ps) >>/Users/jc/w/tmp/Tune-9936-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/_1001/JohnJohnson_ChoiceCollectionVol8-V1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_99361.log 827 Log file, useful mostly for debugging
Form_99369.log 1005 Log file, useful mostly for debugging
Tune-9936-24CountryDances_1805_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-9936-24CountryDances_1805_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-9936-JohnJohnson_ChoiceCollectionVol8-V1.abc 173 ABC music file with the extracted tune(s)
Tune-9936-JohnJohnson_ChoiceCollectionVol8-V1.ps 6 PostScript
Tune-9936-JohnJohnson_ChoiceCollectionVol8-V1.txt 173 Plain-text file with the extracted tune(s)
Tune-9936-get.log 11360 Log file, useful mostly for debugging
Tune-99363-CMCIT.abc 148 ABC music file with the extracted tune(s)
Tune-99363-CMCIT.ps 6 PostScript
Tune-99363-CMCIT.txt 148 Plain-text file with the extracted tune(s)
Tune-99363-get.log 7254 Log file, useful mostly for debugging
Tune-99369-get.log 17083 Log file, useful mostly for debugging
These files should be available for 24 hours.