pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20710-000_Title.ps) >>/Users/jc/w/tmp/Tune-20710-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1776/Thompson/000_Title.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_20710.log 513867 Log file, useful mostly for debugging
Tune-20710-000_Title.abc 597 ABC music file with the extracted tune(s)
Tune-20710-000_Title.ps 31485 PostScript
Tune-20710-000_Title.txt 597 Plain-text file with the extracted tune(s)
Tune-20710-get.log 63276 Log file, useful mostly for debugging
These files should be available for 24 hours.