Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/waifs/Straight_Skillern.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2173-Straight_Skillern.ps) >>/Users/jc/w/tmp/Tune-2173-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/waifs/Straight_Skillern.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-2173-Straight_Skillern.abc 155 ABC music file with the extracted tune(s)
Tune-2173-Straight_Skillern.ps 6 PostScript
Tune-2173-Straight_Skillern.txt 155 Plain-text file with the extracted tune(s)
Tune-2173-get.log 4217 Log file, useful mostly for debugging
Tune-21730-DanielWright_CCCCD.abc 155 ABC music file with the extracted tune(s)
Tune-21730-DanielWright_CCCCD.ps 6 PostScript
Tune-21730-DanielWright_CCCCD.txt 155 Plain-text file with the extracted tune(s)
Tune-21730-get.log 8984 Log file, useful mostly for debugging
Tune-21732-JohnTreat_GftF2.abc 153 ABC music file with the extracted tune(s)
Tune-21732-JohnTreat_GftF2.ps 6 PostScript
Tune-21732-JohnTreat_GftF2.txt 153 Plain-text file with the extracted tune(s)
Tune-21732-get.log 4102 Log file, useful mostly for debugging
Tune-21733-get.log 8515 Log file, useful mostly for debugging
Tune-21737-get.log 1386 Log file, useful mostly for debugging
These files should be available for 24 hours.