pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-42719-ATKINSON.ps) >>/Users/jc/w/tmp/Tune-42719-get.log 2>&1" returned status 256
http://www.cpartington.plus.com/Links/AtkinsoH/ATKINSON(9-9-2015).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-42719-ATKINSON.abc 324 ABC music file with the extracted tune(s)
Tune-42719-ATKINSON.ps 33887 PostScript
Tune-42719-ATKINSON.txt 324 Plain-text file with the extracted tune(s)
Tune-42719-get.log 4359 Log file, useful mostly for debugging
These files should be available for 24 hours.