Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Gow/CR4-abc1.pdf/CR3-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3932-CR3-abc2.ps) >>/Users/jc/w/tmp/Tune-3932-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CR4-abc1.pdf/CR3-abc2.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_3932.log 852 Log file, useful mostly for debugging
Tune-3932-CR3-abc2.abc 157 ABC music file with the extracted tune(s)
Tune-3932-CR3-abc2.ps 6 PostScript
Tune-3932-CR3-abc2.txt 157 Plain-text file with the extracted tune(s)
Tune-3932-get.log 4094 Log file, useful mostly for debugging
Tune-39320-get.log 3480 Log file, useful mostly for debugging
Tune-39321-get.log 4282 Log file, useful mostly for debugging
Tune-39322-get.log 4104 Log file, useful mostly for debugging
Tune-39324-get.log 12524 Log file, useful mostly for debugging
Tune-39325-get.log 5268 Log file, useful mostly for debugging
Tune-39326-get.log 4706 Log file, useful mostly for debugging
Tune-39327-get.log 23810 Log file, useful mostly for debugging
These files should be available for 24 hours.