pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-27673-Alston_No.ps) >>/Users/jc/w/tmp/Tune-27673-get.log 2>&1" returned status 256
http://bushtraditions.wiki/tunes/index.php/Alston_No._27

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-27673-Alston_No.abc 840 ABC music file with the extracted tune(s)
Tune-27673-Alston_No.ps 42290 PostScript
Tune-27673-Alston_No.txt 840 Plain-text file with the extracted tune(s)
Tune-27673-get.log 4257 Log file, useful mostly for debugging
These files should be available for 24 hours.