pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21357-Catch_for_three_Voices.ps) >>/Users/jc/w/tmp/Tune-21357-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/GM/Catch_for_three_Voices.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-21357-Catch_for_three_Voices.abc 1491 ABC music file with the extracted tune(s)
Tune-21357-Catch_for_three_Voices.ps 35514 PostScript
Tune-21357-Catch_for_three_Voices.txt 1491 Plain-text file with the extracted tune(s)
Tune-21357-get.log 5220 Log file, useful mostly for debugging
These files should be available for 24 hours.