pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21509-Avenging_and_Bright_3_W.ps) >>/Users/jc/w/tmp/Tune-21509-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/song/Avenging_and_Bright_3_W.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_21509.log 257739 Log file, useful mostly for debugging
Tune-21509-Avenging_and_Bright_3_W.abc 1177 ABC music file with the extracted tune(s)
Tune-21509-Avenging_and_Bright_3_W.ps 34920 PostScript
Tune-21509-Avenging_and_Bright_3_W.txt 1177 Plain-text file with the extracted tune(s)
Tune-21509-get.log 34202 Log file, useful mostly for debugging
These files should be available for 24 hours.