pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1378-Kerr_MM1-V2.ps) >>/Users/jc/w/tmp/Tune-1378-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM1/Kerr_MM1-V2.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_13784.log 65264 Log file, useful mostly for debugging
Coll_13788.log 129448 Log file, useful mostly for debugging
Find_13785.log 1393 Log file, useful mostly for debugging
Form_13781.log 807 Log file, useful mostly for debugging
Form_13789.log 734 Log file, useful mostly for debugging
Tune-1378-Kerr_MM1-V2.abc 377 ABC music file with the extracted tune(s)
Tune-1378-Kerr_MM1-V2.ps 35975 PostScript
Tune-1378-Kerr_MM1-V2.txt 377 Plain-text file with the extracted tune(s)
Tune-1378-get.log 4292 Log file, useful mostly for debugging
These files should be available for 24 hours.