pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-75108-Harrison.ps) >>/Users/jc/w/tmp/Tune-75108-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/HarrisonRev/Harrison(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
Tune-75108-Harrison.abc 544 ABC music file with the extracted tune(s)
Tune-75108-Harrison.ps 38798 PostScript
Tune-75108-Harrison.txt 544 Plain-text file with the extracted tune(s)
Tune-75108-get.log 4508 Log file, useful mostly for debugging
These files should be available for 24 hours.