pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8671-Boyne_Water_1.ps) >>/Users/jc/w/tmp/Tune-8671-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/montysmaggot.co.uk/Boyne_Water_1.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_8671.log 782 Log file, useful mostly for debugging
Tune-8671-Boyne_Water_1.abc 269 ABC music file with the extracted tune(s)
Tune-8671-Boyne_Water_1.ps 34563 PostScript
Tune-8671-Boyne_Water_1.txt 269 Plain-text file with the extracted tune(s)
Tune-8671-get.log 4305 Log file, useful mostly for debugging
Tune-86710-get.log 4414 Log file, useful mostly for debugging
Tune-86719-get.log 1405 Log file, useful mostly for debugging
These files should be available for 24 hours.