pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1802-MrsGrantsFancy1.ps) >>/Users/jc/w/tmp/Tune-1802-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/MrsGrantsFancy1.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_18025.log 912 Log file, useful mostly for debugging
Tune-1802-MrsGrantsFancy1.abc 2040 ABC music file with the extracted tune(s)
Tune-1802-MrsGrantsFancy1.ps 51830 PostScript
Tune-1802-MrsGrantsFancy1.txt 2040 Plain-text file with the extracted tune(s)
Tune-1802-get.log 5238 Log file, useful mostly for debugging
Tune-18020-get.log 91433 Log file, useful mostly for debugging
Tune-18027-get.log 3674 Log file, useful mostly for debugging
Tune-18028-get.log 3285 Log file, useful mostly for debugging
These files should be available for 24 hours.