pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-34345-CSRHW-abc1.ps) >>/Users/jc/w/tmp/Tune-34345-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/WilliamChristie/CSRHW-abc1.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-34345-CSRHW-abc1.abc 143262 ABC music file with the extracted tune(s)
Tune-34345-CSRHW-abc1.ps 1288687 PostScript
Tune-34345-CSRHW-abc1.txt 143262 Plain-text file with the extracted tune(s)
Tune-34345-get.log 82016 Log file, useful mostly for debugging
These files should be available for 24 hours.