pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-44784-411_Cynthias_Waltz.ps) >>/Users/jc/w/tmp/Tune-44784-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/England/CDSS/Gems/411_Cynthias_Waltz.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
Tune-44784-411_Cynthias_Waltz.abc 917 ABC music file with the extracted tune(s)
Tune-44784-411_Cynthias_Waltz.ps 36747 PostScript
Tune-44784-411_Cynthias_Waltz.txt 917 Plain-text file with the extracted tune(s)
Tune-44784-get.log 4977 Log file, useful mostly for debugging
These files should be available for 24 hours.