pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-39748-Anon053.ps) >>/Users/jc/w/tmp/Tune-39748-get.log 2>&1" returned status 256
http://www.thomasbending.co.uk/titleless/Anon053.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-39748-Anon053.abc 220 ABC music file with the extracted tune(s)
Tune-39748-Anon053.ps 32310 PostScript
Tune-39748-Anon053.txt 220 Plain-text file with the extracted tune(s)
Tune-39748-get.log 10554 Log file, useful mostly for debugging
These files should be available for 24 hours.