pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6929-166_the_Bees.ps) >>/Users/jc/w/tmp/Tune-6929-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/166_the_Bees.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_69290.log 968 Log file, useful mostly for debugging
Form_69294.log 840 Log file, useful mostly for debugging
Form_69295.log 837 Log file, useful mostly for debugging
Tune-6929-166_the_Bees.abc 1101 ABC music file with the extracted tune(s)
Tune-6929-166_the_Bees.ps 37822 PostScript
Tune-6929-166_the_Bees.txt 1101 Plain-text file with the extracted tune(s)
Tune-6929-get.log 4476 Log file, useful mostly for debugging
Tune-69290-get.log 5883 Log file, useful mostly for debugging
Tune-69298-get.log 1691 Log file, useful mostly for debugging
These files should be available for 24 hours.