Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1801/JohnJohnson_ChoiceCollectionVol8-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5065-JohnJohnson_ChoiceCollectionVol8-V1.ps) >>/Users/jc/w/tmp/Tune-5065-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1801/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
Tune-5065-JohnJohnson_ChoiceCollectionVol8-V1.abc 172 ABC music file with the extracted tune(s)
Tune-5065-JohnJohnson_ChoiceCollectionVol8-V1.ps 6 PostScript
Tune-5065-JohnJohnson_ChoiceCollectionVol8-V1.txt 172 Plain-text file with the extracted tune(s)
Tune-5065-get.log 16381 Log file, useful mostly for debugging
Tune-50650-get.log 4717 Log file, useful mostly for debugging
Tune-50654-get.log 3914 Log file, useful mostly for debugging
Tune-50655-get.log 8381 Log file, useful mostly for debugging
Tune-50656-get.log 3346 Log file, useful mostly for debugging
Tune-50657-get.log 6671 Log file, useful mostly for debugging
Tune-50658-get.log 9119 Log file, useful mostly for debugging
These files should be available for 24 hours.