pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-12063-Julia_Harringtons_Polka.ps) >>/Users/jc/w/tmp/Tune-12063-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CuzTeahan/SliabhLuachroOnParade/Julia_Harringtons_Polka.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Form_12063.log 827 Log file, useful mostly for debugging
Tune-12063-Julia_Harringtons_Polka.abc 389 ABC music file with the extracted tune(s)
Tune-12063-Julia_Harringtons_Polka.ps 33866 PostScript
Tune-12063-Julia_Harringtons_Polka.txt 389 Plain-text file with the extracted tune(s)
Tune-12063-get.log 4939 Log file, useful mostly for debugging
These files should be available for 24 hours.