pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-98016-371_Guardian_Angels.ps) >>/Users/jc/w/tmp/Tune-98016-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1776/Thompson/371_Guardian_Angels.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_98016.log 954 Log file, useful mostly for debugging
Tune-98016-371_Guardian_Angels.abc 1045 ABC music file with the extracted tune(s)
Tune-98016-371_Guardian_Angels.ps 36316 PostScript
Tune-98016-371_Guardian_Angels.txt 1045 Plain-text file with the extracted tune(s)
Tune-98016-get.log 9250 Log file, useful mostly for debugging
These files should be available for 24 hours.