pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-76346-William_Clarketunes.ps) >>/Users/jc/w/tmp/Tune-76346-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/maryhumphreys.co.uk/William_Clarketunes.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_76346.log 257739 Log file, useful mostly for debugging
Tune-76346-William_Clarketunes.abc 351 ABC music file with the extracted tune(s)
Tune-76346-William_Clarketunes.ps 35405 PostScript
Tune-76346-William_Clarketunes.txt 351 Plain-text file with the extracted tune(s)
Tune-76346-get.log 4609 Log file, useful mostly for debugging
These files should be available for 24 hours.