pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5033-Halloween1_Dm.ps) >>/Users/jc/w/tmp/Tune-5033-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/reel/Halloween1_Dm.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_5033.log 857 Log file, useful mostly for debugging
Form_50335.log 832 Log file, useful mostly for debugging
Tune-5033-Halloween1_Dm.abc 429 ABC music file with the extracted tune(s)
Tune-5033-Halloween1_Dm.ps 34840 PostScript
Tune-5033-Halloween1_Dm.txt 429 Plain-text file with the extracted tune(s)
Tune-5033-get.log 4291 Log file, useful mostly for debugging
Tune-50333-get.log 3708 Log file, useful mostly for debugging
Tune-50337-get.log 5184 Log file, useful mostly for debugging
Tune-50338-get.log 3990 Log file, useful mostly for debugging
These files should be available for 24 hours.