pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-63770-CircassianCircle.ps) >>/Users/jc/w/tmp/Tune-63770-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/CillasWedding/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
Tune-63770-CircassianCircle.abc 2430 ABC music file with the extracted tune(s)
Tune-63770-CircassianCircle.ps 49040 PostScript
Tune-63770-CircassianCircle.txt 2430 Plain-text file with the extracted tune(s)
Tune-63770-get.log 4784 Log file, useful mostly for debugging
These files should be available for 24 hours.