pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-15542-Barsanti_CoOST.ps) >>/Users/jc/w/tmp/Tune-15542-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Barsanti/Barsanti_CoOST.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_15542.log 294166 Log file, useful mostly for debugging
Tune-15542-Barsanti_CoOST.abc 33424 ABC music file with the extracted tune(s)
Tune-15542-Barsanti_CoOST.ps 293910 PostScript
Tune-15542-Barsanti_CoOST.txt 33424 Plain-text file with the extracted tune(s)
Tune-15542-get.log 26850 Log file, useful mostly for debugging
These files should be available for 24 hours.