pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-31497-291_Croydon_Frisk.ps) >>/Users/jc/w/tmp/Tune-31497-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1767/Thompson/291_Croydon_Frisk.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-31497-291_Croydon_Frisk.abc 926 ABC music file with the extracted tune(s)
Tune-31497-291_Croydon_Frisk.ps 34182 PostScript
Tune-31497-291_Croydon_Frisk.txt 926 Plain-text file with the extracted tune(s)
Tune-31497-get.log 4643 Log file, useful mostly for debugging
These files should be available for 24 hours.