pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78933-0864-GrandfathersPet.ps) >>/Users/jc/w/tmp/Tune-78933-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/sosyourmom.com/ABC-0801-900/0864-GrandfathersPet.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_78933.log 65264 Log file, useful mostly for debugging
Tune-78933-0864-GrandfathersPet.abc 500 ABC music file with the extracted tune(s)
Tune-78933-0864-GrandfathersPet.ps 34617 PostScript
Tune-78933-0864-GrandfathersPet.txt 500 Plain-text file with the extracted tune(s)
Tune-78933-get.log 12297 Log file, useful mostly for debugging
These files should be available for 24 hours.