pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-52074-651_Merry_Meeting.ps) >>/Users/jc/w/tmp/Tune-52074-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1778/Thompson/651_Merry_Meeting.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_52074.log 306811 Log file, useful mostly for debugging
Tune-52074-651_Merry_Meeting.abc 1092 ABC music file with the extracted tune(s)
Tune-52074-651_Merry_Meeting.ps 37082 PostScript
Tune-52074-651_Merry_Meeting.txt 1092 Plain-text file with the extracted tune(s)
Tune-52074-get.log 4660 Log file, useful mostly for debugging
These files should be available for 24 hours.