pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-30188-tunelist.ps) >>/Users/jc/w/tmp/Tune-30188-get.log 2>&1" returned status 256
http://www.belfagan.org.uk/music/tunelist.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-30188-get.log 4194 Log file, useful mostly for debugging
Tune-30188-tunelist.abc 278 ABC music file with the extracted tune(s)
Tune-30188-tunelist.ps 35274 PostScript
Tune-30188-tunelist.txt 278 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.