pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-95997-4281_the_Bridge_of_Perth.ps) >>/Users/jc/w/tmp/Tune-95997-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/4281_the_Bridge_of_Perth.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_95997.log 149900 Log file, useful mostly for debugging
Tune-95997-4281_the_Bridge_of_Perth.abc 793 ABC music file with the extracted tune(s)
Tune-95997-4281_the_Bridge_of_Perth.ps 36799 PostScript
Tune-95997-4281_the_Bridge_of_Perth.txt 793 Plain-text file with the extracted tune(s)
Tune-95997-get.log 4762 Log file, useful mostly for debugging
These files should be available for 24 hours.