pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2355-1088_hn.ps) >>/Users/jc/w/tmp/Tune-2355-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/oneills/1850/X/1088_hn.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
Tune-2355-1088_hn.abc 351 ABC music file with the extracted tune(s)
Tune-2355-1088_hn.ps 35052 PostScript
Tune-2355-1088_hn.txt 351 Plain-text file with the extracted tune(s)
Tune-2355-get.log 4370 Log file, useful mostly for debugging
Tune-23552-get.log 1454 Log file, useful mostly for debugging
Tune-23556-get.log 3264 Log file, useful mostly for debugging
Tune-23557-get.log 3753 Log file, useful mostly for debugging
Tune-23559-get.log 3182 Log file, useful mostly for debugging
These files should be available for 24 hours.