Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Tweed1/JohnJohnson_ChoiceCollectionVol8-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5674-JohnJohnson_ChoiceCollectionVol8-V1.ps) >>/Users/jc/w/tmp/Tune-5674-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Tweed1/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
Coll_56743.log 412212 Log file, useful mostly for debugging
Coll_56748.log 97313 Log file, useful mostly for debugging
Find_5674.log 1526 Log file, useful mostly for debugging
Tune-5674-JohnJohnson_ChoiceCollectionVol8-V1.abc 174 ABC music file with the extracted tune(s)
Tune-5674-JohnJohnson_ChoiceCollectionVol8-V1.ps 6 PostScript
Tune-5674-JohnJohnson_ChoiceCollectionVol8-V1.txt 174 Plain-text file with the extracted tune(s)
Tune-5674-get.log 4601 Log file, useful mostly for debugging
Tune-56740-get.log 4114 Log file, useful mostly for debugging
Tune-56741-get.log 9745 Log file, useful mostly for debugging
Tune-56743-get.log 9087 Log file, useful mostly for debugging
Tune-56745-get.log 4682 Log file, useful mostly for debugging
Tune-56747-get.log 8467 Log file, useful mostly for debugging
Tune-56749-get.log 4126 Log file, useful mostly for debugging
These files should be available for 24 hours.