Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NewColl44Cot/JohnJohnson_ChoiceCollectionVol8-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9912-JohnJohnson_ChoiceCollectionVol8-V1.ps) >>/Users/jc/w/tmp/Tune-9912-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NewColl44Cot/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-9912-JohnJohnson_ChoiceCollectionVol8-V1.abc 180 ABC music file with the extracted tune(s)
Tune-9912-JohnJohnson_ChoiceCollectionVol8-V1.ps 6 PostScript
Tune-9912-JohnJohnson_ChoiceCollectionVol8-V1.txt 180 Plain-text file with the extracted tune(s)
Tune-9912-get.log 10598 Log file, useful mostly for debugging
Tune-99120-get.log 3270 Log file, useful mostly for debugging
Tune-99121-get.log 8483 Log file, useful mostly for debugging
Tune-99122-Nelson.abc 151 ABC music file with the extracted tune(s)
Tune-99122-Nelson.ps 6 PostScript
Tune-99122-Nelson.txt 151 Plain-text file with the extracted tune(s)
Tune-99122-get.log 4076 Log file, useful mostly for debugging
Tune-99123-get.log 4211 Log file, useful mostly for debugging
Tune-99125-get.log 2946 Log file, useful mostly for debugging
Tune-99126-JohnTreat_GftF1.abc 153 ABC music file with the extracted tune(s)
Tune-99126-JohnTreat_GftF1.pdf 2217 Portable Data Format
Tune-99126-JohnTreat_GftF1.ps 6 PostScript
Tune-99126-JohnTreat_GftF1.txt 153 Plain-text file with the extracted tune(s)
Tune-99126-get.log 17730 Log file, useful mostly for debugging
These files should be available for 24 hours.