pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9669-Mill_Brae-A-32-4,6.ps) >>/Users/jc/w/tmp/Tune-9669-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/session/reel/Mill_Brae-A-32-4,6.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_9669.log 259149 Log file, useful mostly for debugging
Coll_96693.log 139177 Log file, useful mostly for debugging
Tune-9669-Mill_Brae-A-32-4,6.abc 1251 ABC music file with the extracted tune(s)
Tune-9669-Mill_Brae-A-32-4,6.ps 43835 PostScript
Tune-9669-Mill_Brae-A-32-4,6.txt 1251 Plain-text file with the extracted tune(s)
Tune-9669-get.log 5327 Log file, useful mostly for debugging
These files should be available for 24 hours.