pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8772-Dunnichen_House-D-16-4.ps) >>/Users/jc/w/tmp/Tune-8772-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/session/reel/Dunnichen_House-D-16-4.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
Form_87726.log 837 Log file, useful mostly for debugging
Tune-8772-Dunnichen_House-D-16-4.abc 912 ABC music file with the extracted tune(s)
Tune-8772-Dunnichen_House-D-16-4.ps 36056 PostScript
Tune-8772-Dunnichen_House-D-16-4.txt 912 Plain-text file with the extracted tune(s)
Tune-8772-get.log 13264 Log file, useful mostly for debugging
Tune-87720-get.log 2492 Log file, useful mostly for debugging
Tune-87723-get.log 4582 Log file, useful mostly for debugging
Tune-87729-get.log 1409 Log file, useful mostly for debugging
These files should be available for 24 hours.