pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9146-Lucy_Campbell_1.ps) >>/Users/jc/w/tmp/Tune-9146-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Perron-Miller/Lucy_Campbell_1.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_91460.log 272339 Log file, useful mostly for debugging
Coll_91462.log 67154 Log file, useful mostly for debugging
Coll_91466.log 268169 Log file, useful mostly for debugging
Form_91463.log 768 Log file, useful mostly for debugging
Form_91464.log 748 Log file, useful mostly for debugging
Form_91469.log 874 Log file, useful mostly for debugging
Tune-9146-Lucy_Campbell_1.abc 581 ABC music file with the extracted tune(s)
Tune-9146-Lucy_Campbell_1.ps 39089 PostScript
Tune-9146-Lucy_Campbell_1.txt 581 Plain-text file with the extracted tune(s)
Tune-9146-get.log 8372 Log file, useful mostly for debugging
Tune-91460-get.log 6354 Log file, useful mostly for debugging
Tune-91467-get.log 1503 Log file, useful mostly for debugging
Tune-91468-get.log 5152 Log file, useful mostly for debugging
Tune-91469-get.log 3030 Log file, useful mostly for debugging
These files should be available for 24 hours.