pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-26064-059_Keel_Row_The.ps) >>/Users/jc/w/tmp/Tune-26064-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Chappell/059_Keel_Row_The.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Form_26064.log 1025 Log file, useful mostly for debugging
Tune-26064-059_Keel_Row_The.abc 519 ABC music file with the extracted tune(s)
Tune-26064-059_Keel_Row_The.ps 36493 PostScript
Tune-26064-059_Keel_Row_The.txt 519 Plain-text file with the extracted tune(s)
Tune-26064-get.log 4932 Log file, useful mostly for debugging
These files should be available for 24 hours.