pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-35698-073-dunphyshornpipe.ps) >>/Users/jc/w/tmp/Tune-35698-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/sosyourmom.com/Allans/ABCtxt/073-dunphyshornpipe.txt

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-35698-073-dunphyshornpipe.abc 763 ABC music file with the extracted tune(s)
Tune-35698-073-dunphyshornpipe.ps 39780 PostScript
Tune-35698-073-dunphyshornpipe.txt 763 Plain-text file with the extracted tune(s)
Tune-35698-get.log 8324 Log file, useful mostly for debugging
These files should be available for 24 hours.