pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-18196-212_the_President.ps) >>/Users/jc/w/tmp/Tune-18196-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnTreat/GftF/212_the_President.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_18196.log 532132 Log file, useful mostly for debugging
Tune-18196-212_the_President.abc 657 ABC music file with the extracted tune(s)
Tune-18196-212_the_President.ps 34487 PostScript
Tune-18196-212_the_President.txt 657 Plain-text file with the extracted tune(s)
Tune-18196-get.log 4610 Log file, useful mostly for debugging
These files should be available for 24 hours.