pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1544-MacArthur_Road-E,D-32-5.ps) >>/Users/jc/w/tmp/Tune-1544-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/session/reel/MacArthur_Road-E,D-32-5.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_15441.log 867 Log file, useful mostly for debugging
Tune-1544-MacArthur_Road-E,D-32-5.abc 635 ABC music file with the extracted tune(s)
Tune-1544-MacArthur_Road-E,D-32-5.ps 37525 PostScript
Tune-1544-MacArthur_Road-E,D-32-5.txt 635 Plain-text file with the extracted tune(s)
Tune-1544-get.log 51828 Log file, useful mostly for debugging
Tune-15441-get.log 2363 Log file, useful mostly for debugging
Tune-15447-get.log 49917 Log file, useful mostly for debugging
These files should be available for 24 hours.