Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Whetherly21/JohnJohnson_ChoiceCollectionVol8-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2701-JohnJohnson_ChoiceCollectionVol8-V1.ps) >>/Users/jc/w/tmp/Tune-2701-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Whetherly21/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-2701-JohnJohnson_ChoiceCollectionVol8-V1.abc 179 ABC music file with the extracted tune(s)
Tune-2701-JohnJohnson_ChoiceCollectionVol8-V1.ps 6 PostScript
Tune-2701-JohnJohnson_ChoiceCollectionVol8-V1.txt 179 Plain-text file with the extracted tune(s)
Tune-2701-get.log 4633 Log file, useful mostly for debugging
Tune-27012-get.log 4011 Log file, useful mostly for debugging
Tune-27013-CDSS_CDoT.abc 148 ABC music file with the extracted tune(s)
Tune-27013-CDSS_CDoT.pdf 2217 Portable Data Format
Tune-27013-CDSS_CDoT.ps 6 PostScript
Tune-27013-CDSS_CDoT.txt 148 Plain-text file with the extracted tune(s)
Tune-27013-get.log 4861 Log file, useful mostly for debugging
Tune-27014-get.log 12284 Log file, useful mostly for debugging
Tune-27017-get.log 5433 Log file, useful mostly for debugging
Tune-27018-get.log 4273 Log file, useful mostly for debugging
These files should be available for 24 hours.