pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-64768-20181_Tam_Glen.ps) >>/Users/jc/w/tmp/Tune-64768-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/20181_Tam_Glen.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_64768.log 506321 Log file, useful mostly for debugging
Tune-64768-20181_Tam_Glen.abc 616 ABC music file with the extracted tune(s)
Tune-64768-20181_Tam_Glen.ps 34877 PostScript
Tune-64768-20181_Tam_Glen.txt 616 Plain-text file with the extracted tune(s)
Tune-64768-get.log 4430 Log file, useful mostly for debugging
These files should be available for 24 hours.