pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-71981-10thstreet.ps) >>/Users/jc/w/tmp/Tune-71981-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/home.insightbb.com/~otter256/dance/10thstreet.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-71981-10thstreet.abc 437 ABC music file with the extracted tune(s)
Tune-71981-10thstreet.ps 35398 PostScript
Tune-71981-10thstreet.txt 437 Plain-text file with the extracted tune(s)
Tune-71981-get.log 18969 Log file, useful mostly for debugging
These files should be available for 24 hours.