pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-25527-BarnesJ.ps) >>/Users/jc/w/tmp/Tune-25527-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/BarnesJ/BarnesJ(12-4-2016).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_25527.log 64454 Log file, useful mostly for debugging
Tune-25527-BarnesJ.abc 874 ABC music file with the extracted tune(s)
Tune-25527-BarnesJ.ps 41526 PostScript
Tune-25527-BarnesJ.txt 874 Plain-text file with the extracted tune(s)
Tune-25527-get.log 28407 Log file, useful mostly for debugging
These files should be available for 24 hours.