pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-55547-942_Hey_ding_a_ding.ps) >>/Users/jc/w/tmp/Tune-55547-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1780/Thompson/942_Hey_ding_a_ding.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-55547-942_Hey_ding_a_ding.abc 915 ABC music file with the extracted tune(s)
Tune-55547-942_Hey_ding_a_ding.ps 34117 PostScript
Tune-55547-942_Hey_ding_a_ding.txt 915 Plain-text file with the extracted tune(s)
Tune-55547-get.log 4702 Log file, useful mostly for debugging
These files should be available for 24 hours.