Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/mp3/JohnJohnson_ChoiceCollectionVol8-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5134-JohnJohnson_ChoiceCollectionVol8-V2.ps) >>/Users/jc/w/tmp/Tune-5134-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/mp3/JohnJohnson_ChoiceCollectionVol8-V2.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_51344.log 897 Log file, useful mostly for debugging
Tune-5134-JohnJohnson_ChoiceCollectionVol8-V2.abc 171 ABC music file with the extracted tune(s)
Tune-5134-JohnJohnson_ChoiceCollectionVol8-V2.ps 6 PostScript
Tune-5134-JohnJohnson_ChoiceCollectionVol8-V2.txt 171 Plain-text file with the extracted tune(s)
Tune-5134-get.log 4581 Log file, useful mostly for debugging
Tune-51340-Gow-CSR2-abc2.abc 152 ABC music file with the extracted tune(s)
Tune-51340-Gow-CSR2-abc2.pdf 2217 Portable Data Format
Tune-51340-Gow-CSR2-abc2.ps 6 PostScript
Tune-51340-Gow-CSR2-abc2.txt 152 Plain-text file with the extracted tune(s)
Tune-51340-get.log 4981 Log file, useful mostly for debugging
Tune-51341-get.log 4760 Log file, useful mostly for debugging
Tune-51342-get.log 5703 Log file, useful mostly for debugging
Tune-51343-get.log 4525 Log file, useful mostly for debugging
Tune-51346-get.log 9523 Log file, useful mostly for debugging
These files should be available for 24 hours.