pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7953-RJ_AllWaltz.ps) >>/Users/jc/w/tmp/Tune-7953-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/RJ/RJ_AllWaltz.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_79531.log 2552 Log file, useful mostly for debugging
Form_79537.log 526 Log file, useful mostly for debugging
Tune-7953-RJ_AllWaltz.abc 1049 ABC music file with the extracted tune(s)
Tune-7953-RJ_AllWaltz.ps 35773 PostScript
Tune-7953-RJ_AllWaltz.txt 1049 Plain-text file with the extracted tune(s)
Tune-7953-get.log 18022 Log file, useful mostly for debugging
Tune-79530-get.log 8066 Log file, useful mostly for debugging
Tune-79531-get.log 0 Log file, useful mostly for debugging
Tune-79532-get.log 4086 Log file, useful mostly for debugging
Tune-79534-get.log 4094 Log file, useful mostly for debugging
Tune-79537-get.log 1644 Log file, useful mostly for debugging
Tune-79538-get.log 1839 Log file, useful mostly for debugging
These files should be available for 24 hours.