pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-86799-Loch_Carron.ps) >>/Users/jc/w/tmp/Tune-86799-get.log 2>&1" returned status 256
http://www.tunearch.org/wiki/Loch_Carron

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-86799-Loch_Carron.abc 467 ABC music file with the extracted tune(s)
Tune-86799-Loch_Carron.ps 41955 PostScript
Tune-86799-Loch_Carron.txt 467 Plain-text file with the extracted tune(s)
Tune-86799-get.log 4051 Log file, useful mostly for debugging
These files should be available for 24 hours.