pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-12858-Colonel_Robertson_.ps) >>/Users/jc/w/tmp/Tune-12858-get.log 2>&1" returned status 256
http://tunearch.org/wiki/Colonel_Robertson_(2)

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-12858-Colonel_Robertson_.abc 378 ABC music file with the extracted tune(s)
Tune-12858-Colonel_Robertson_.ps 36344 PostScript
Tune-12858-Colonel_Robertson_.txt 378 Plain-text file with the extracted tune(s)
Tune-12858-get.log 4423 Log file, useful mostly for debugging
These files should be available for 24 hours.