pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1497-FiTuBo.ps) >>/Users/jc/w/tmp/Tune-1497-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/FiTuBo/FiTuBo(12-4-16).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_14971.log 267609 Log file, useful mostly for debugging
Coll_14979.log 139177 Log file, useful mostly for debugging
Find_14976.log 1644 Log file, useful mostly for debugging
Form_14973.log 838 Log file, useful mostly for debugging
Tune-1497-FiTuBo.abc 378 ABC music file with the extracted tune(s)
Tune-1497-FiTuBo.ps 37637 PostScript
Tune-1497-FiTuBo.txt 378 Plain-text file with the extracted tune(s)
Tune-1497-get.log 4365 Log file, useful mostly for debugging
Tune-14970-get.log 4565 Log file, useful mostly for debugging
Tune-14974-get.log 3706864 Log file, useful mostly for debugging
These files should be available for 24 hours.