pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2481-Glen2.ps) >>/Users/jc/w/tmp/Tune-2481-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/Glen2/Glen2.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_24812.log 264789 Log file, useful mostly for debugging
Coll_24815.log 512658 Log file, useful mostly for debugging
Tune-2481-Glen2.abc 922 ABC music file with the extracted tune(s)
Tune-2481-Glen2.ps 40040 PostScript
Tune-2481-Glen2.txt 922 Plain-text file with the extracted tune(s)
Tune-2481-get.log 8911 Log file, useful mostly for debugging
Tune-24817-get.log 3378 Log file, useful mostly for debugging
These files should be available for 24 hours.