Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/tune/CSRHW-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4859-CSRHW-abc1.ps) >>/Users/jc/w/tmp/Tune-4859-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/tune/CSRHW-abc1.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_48599.log 965 Log file, useful mostly for debugging
Tune-4859-CSRHW-abc1.abc 147 ABC music file with the extracted tune(s)
Tune-4859-CSRHW-abc1.ps 6 PostScript
Tune-4859-CSRHW-abc1.txt 147 Plain-text file with the extracted tune(s)
Tune-4859-get.log 8228 Log file, useful mostly for debugging
Tune-48591-get.log 5051 Log file, useful mostly for debugging
Tune-48594-24CountryDances_1809_Button_Whitaker.abc 173 ABC music file with the extracted tune(s)
Tune-48594-24CountryDances_1809_Button_Whitaker.ps 6 PostScript
Tune-48594-24CountryDances_1809_Button_Whitaker.txt 173 Plain-text file with the extracted tune(s)
Tune-48594-get.log 4539 Log file, useful mostly for debugging
Tune-48599-get.log 2892 Log file, useful mostly for debugging
These files should be available for 24 hours.