pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-50064-HuntlyCastle1.ps) >>/Users/jc/w/tmp/Tune-50064-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/HuntlyCastle1.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
Coll_50064.log 267609 Log file, useful mostly for debugging
Find_50064.log 1679 Log file, useful mostly for debugging
Tune-50064-HuntlyCastle1.abc 503 ABC music file with the extracted tune(s)
Tune-50064-HuntlyCastle1.ps 36369 PostScript
Tune-50064-HuntlyCastle1.txt 503 Plain-text file with the extracted tune(s)
Tune-50064-get.log 4272 Log file, useful mostly for debugging
These files should be available for 24 hours.