pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5348-Dusty_Bobs_Jig-G-32-3.ps) >>/Users/jc/w/tmp/Tune-5348-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Dusty_Bobs_Jig-G-32-3.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_53485.log 130707 Log file, useful mostly for debugging
Coll_53487.log 146437 Log file, useful mostly for debugging
List53488.log 88 Log file, useful mostly for debugging
Tune-5348-Dusty_Bobs_Jig-G-32-3.abc 587 ABC music file with the extracted tune(s)
Tune-5348-Dusty_Bobs_Jig-G-32-3.ps 36132 PostScript
Tune-5348-Dusty_Bobs_Jig-G-32-3.txt 587 Plain-text file with the extracted tune(s)
Tune-5348-get.log 4991 Log file, useful mostly for debugging
These files should be available for 24 hours.