Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/FdML/JohnJohnson_ChoiceCollectionVol8-VMP.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6643-JohnJohnson_ChoiceCollectionVol8-VMP.ps) >>/Users/jc/w/tmp/Tune-6643-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/FdML/JohnJohnson_ChoiceCollectionVol8-VMP.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_6643.log 230 Log file, useful mostly for debugging
Tune-6643-JohnJohnson_ChoiceCollectionVol8-VMP.abc 173 ABC music file with the extracted tune(s)
Tune-6643-JohnJohnson_ChoiceCollectionVol8-VMP.ps 6 PostScript
Tune-6643-JohnJohnson_ChoiceCollectionVol8-VMP.txt 173 Plain-text file with the extracted tune(s)
Tune-6643-get.log 4610 Log file, useful mostly for debugging
Tune-66430-get.log 4022 Log file, useful mostly for debugging
Tune-66431-get.log 3245 Log file, useful mostly for debugging
Tune-66432-get.log 9137 Log file, useful mostly for debugging
Tune-66433-get.log 10731 Log file, useful mostly for debugging
Tune-66435-get.log 3364 Log file, useful mostly for debugging
Tune-66436-get.log 6252 Log file, useful mostly for debugging
Tune-66438-get.log 5170 Log file, useful mostly for debugging
Tune-66439-get.log 7512 Log file, useful mostly for debugging
These files should be available for 24 hours.