pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-90669-012_Royal_Prince_Frederick.ps) >>/Users/jc/w/tmp/Tune-90669-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1765/Thompson/012_Royal_Prince_Frederick.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-90669-012_Royal_Prince_Frederick.abc 920 ABC music file with the extracted tune(s)
Tune-90669-012_Royal_Prince_Frederick.ps 34351 PostScript
Tune-90669-012_Royal_Prince_Frederick.txt 920 Plain-text file with the extracted tune(s)
Tune-90669-get.log 9227 Log file, useful mostly for debugging
These files should be available for 24 hours.