pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-659-142105_Liverpool_Hornpipe.ps) >>/Users/jc/w/tmp/Tune-659-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM1/142105_Liverpool_Hornpipe.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_6597.log 265146 Log file, useful mostly for debugging
Form_6595.log 0 Log file, useful mostly for debugging
Form_6599.log 888 Log file, useful mostly for debugging
Tune-659-142105_Liverpool_Hornpipe.abc 534 ABC music file with the extracted tune(s)
Tune-659-142105_Liverpool_Hornpipe.ps 37787 PostScript
Tune-659-142105_Liverpool_Hornpipe.txt 534 Plain-text file with the extracted tune(s)
Tune-659-get.log 5243 Log file, useful mostly for debugging
Tune-65912-get.log 4458 Log file, useful mostly for debugging
Tune-65920-get.log 1484 Log file, useful mostly for debugging
Tune-65930-get.log 0 Log file, useful mostly for debugging
Tune-6597-YeshLanuTayish.abc 0 ABC music file with the extracted tune(s)
Tune-6597-YeshLanuTayish.txt 0 Plain-text file with the extracted tune(s)
Tune-6597-get.log 0 Log file, useful mostly for debugging
Tune-65985-get.log 3830 Log file, useful mostly for debugging
Tune-65986-get.log 3680 Log file, useful mostly for debugging
Tune-65989-get.log 7033 Log file, useful mostly for debugging
Tune-65993-get.log 4203 Log file, useful mostly for debugging
Tune-65994-get.log 2636 Log file, useful mostly for debugging
These files should be available for 24 hours.