pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-76508-tradtunes1.ps) >>/Users/jc/w/tmp/Tune-76508-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/kennaquhair.com/tradtunes1.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-76508-get.log 26233 Log file, useful mostly for debugging
Tune-76508-tradtunes1.abc 315 ABC music file with the extracted tune(s)
Tune-76508-tradtunes1.ps 34359 PostScript
Tune-76508-tradtunes1.txt 315 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.