pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-87821-10812_Cauld_Kail_in_Aberdeen.ps) >>/Users/jc/w/tmp/Tune-87821-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ERM/10812_Cauld_Kail_in_Aberdeen.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_87821.log 139177 Log file, useful mostly for debugging
Tune-87821-10812_Cauld_Kail_in_Aberdeen.abc 410 ABC music file with the extracted tune(s)
Tune-87821-10812_Cauld_Kail_in_Aberdeen.ps 33610 PostScript
Tune-87821-10812_Cauld_Kail_in_Aberdeen.txt 410 Plain-text file with the extracted tune(s)
Tune-87821-get.log 9024 Log file, useful mostly for debugging
These files should be available for 24 hours.