pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67786-053.ps) >>/Users/jc/w/tmp/Tune-67786-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/053=Thanksgiving-V2.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_67786.log 264661 Log file, useful mostly for debugging
Tune-67786-053.abc 2890 ABC music file with the extracted tune(s)
Tune-67786-053.ps 43917 PostScript
Tune-67786-053.txt 2890 Plain-text file with the extracted tune(s)
Tune-67786-get.log 6263 Log file, useful mostly for debugging
These files should be available for 24 hours.