pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6170-Shottish6.ps) >>/Users/jc/w/tmp/Tune-6170-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Intl/event/2012NEFFA/Shottish6.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_61705.log 842 Log file, useful mostly for debugging
Form_61709.log 820 Log file, useful mostly for debugging
Tune-6170-Shottish6.abc 884 ABC music file with the extracted tune(s)
Tune-6170-Shottish6.ps 43799 PostScript
Tune-6170-Shottish6.txt 884 Plain-text file with the extracted tune(s)
Tune-6170-get.log 4285 Log file, useful mostly for debugging
Tune-61701-get.log 1398 Log file, useful mostly for debugging
Tune-61704-get.log 4460 Log file, useful mostly for debugging
Tune-61705-MacArthur_Road-E-32-4.abc 686 ABC music file with the extracted tune(s)
Tune-61705-MacArthur_Road-E-32-4.txt 686 Plain-text file with the extracted tune(s)
Tune-61705-get.log 3733 Log file, useful mostly for debugging
These files should be available for 24 hours.