pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-72901-CircassianCircle.ps) >>/Users/jc/w/tmp/Tune-72901-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/England/program/20121109/CircassianCircle.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Form_72901.log 784 Log file, useful mostly for debugging
Tune-72901-CircassianCircle.abc 2273 ABC music file with the extracted tune(s)
Tune-72901-CircassianCircle.ps 49040 PostScript
Tune-72901-CircassianCircle.txt 2273 Plain-text file with the extracted tune(s)
Tune-72901-get.log 4787 Log file, useful mostly for debugging
These files should be available for 24 hours.