Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/CSR/SocialDances2002.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24852-SocialDances2002.ps) >>/Users/jc/w/tmp/Tune-24852-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CSR/SocialDances2002.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_24852.log 829 Log file, useful mostly for debugging
Tune-24852-Gallini_NewColl44Cot2.abc 156 ABC music file with the extracted tune(s)
Tune-24852-Gallini_NewColl44Cot2.pdf 2217 Portable Data Format
Tune-24852-Gallini_NewColl44Cot2.ps 6 PostScript
Tune-24852-Gallini_NewColl44Cot2.txt 156 Plain-text file with the extracted tune(s)
Tune-24852-SocialDances2002.abc 152 ABC music file with the extracted tune(s)
Tune-24852-SocialDances2002.ps 6 PostScript
Tune-24852-SocialDances2002.txt 152 Plain-text file with the extracted tune(s)
Tune-24852-get.log 9390 Log file, useful mostly for debugging
These files should be available for 24 hours.