pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7917-strathspey0.ps) >>/Users/jc/w/tmp/Tune-7917-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/strathspey0.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_79173.log 135142 Log file, useful mostly for debugging
Form_79174.log 821 Log file, useful mostly for debugging
Form_79175.log 830 Log file, useful mostly for debugging
Form_79178.log 863 Log file, useful mostly for debugging
Tune-7917-get.log 4256 Log file, useful mostly for debugging
Tune-7917-strathspey0.abc 502 ABC music file with the extracted tune(s)
Tune-7917-strathspey0.ps 37178 PostScript
Tune-7917-strathspey0.txt 502 Plain-text file with the extracted tune(s)
Tune-79173-get.log 4093 Log file, useful mostly for debugging
Tune-79175-get.log 1646 Log file, useful mostly for debugging
Tune-79176-get.log 0 Log file, useful mostly for debugging
Tune-79177-get.log 0 Log file, useful mostly for debugging
These files should be available for 24 hours.