pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21963-21442_Scots_Wha_Hae_Wi_Wallace_Bled.ps) >>/Users/jc/w/tmp/Tune-21963-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Hamilton/HUTB2/21442_Scots_Wha_Hae_Wi_Wallace_Bled.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
Tune-21963-21442_Scots_Wha_Hae_Wi_Wallace_Bled.abc 665 ABC music file with the extracted tune(s)
Tune-21963-21442_Scots_Wha_Hae_Wi_Wallace_Bled.ps 35876 PostScript
Tune-21963-21442_Scots_Wha_Hae_Wi_Wallace_Bled.txt 665 Plain-text file with the extracted tune(s)
Tune-21963-get.log 5060 Log file, useful mostly for debugging
These files should be available for 24 hours.