pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1775-MrsGrantsFancy0.ps) >>/Users/jc/w/tmp/Tune-1775-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/MrsGrantsFancy0.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
Coll_1775.log 132522 Log file, useful mostly for debugging
Coll_17750.log 254919 Log file, useful mostly for debugging
Coll_17754.log 142807 Log file, useful mostly for debugging
Tune-1775-MrsGrantsFancy0.abc 1504 ABC music file with the extracted tune(s)
Tune-1775-MrsGrantsFancy0.ps 45402 PostScript
Tune-1775-MrsGrantsFancy0.txt 1504 Plain-text file with the extracted tune(s)
Tune-1775-get.log 13053 Log file, useful mostly for debugging
Tune-17750-get.log 1605 Log file, useful mostly for debugging
Tune-17751-get.log 3439 Log file, useful mostly for debugging
Tune-17752-get.log 7669 Log file, useful mostly for debugging
These files should be available for 24 hours.