pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8277-Kerr_MM1-V1.ps) >>/Users/jc/w/tmp/Tune-8277-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM1/Kerr_MM1-V1.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_82773.log 135928 Log file, useful mostly for debugging
Find_82770.log 1580 Log file, useful mostly for debugging
Form_82772.log 746 Log file, useful mostly for debugging
Form_82774.log 719 Log file, useful mostly for debugging
Form_82778.log 721 Log file, useful mostly for debugging
Tune-8277-Kerr_MM1-V1.abc 432 ABC music file with the extracted tune(s)
Tune-8277-Kerr_MM1-V1.ps 37774 PostScript
Tune-8277-Kerr_MM1-V1.txt 432 Plain-text file with the extracted tune(s)
Tune-8277-get.log 4334 Log file, useful mostly for debugging
Tune-82770-get.log 5306 Log file, useful mostly for debugging
Tune-82774-get.log 3175 Log file, useful mostly for debugging
These files should be available for 24 hours.