pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21069-slurs.ps) >>/Users/jc/w/tmp/Tune-21069-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnTreat/GftF/slurs.abc

Error exit status 256; here are some files to check:

[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-21069-get.log 8948 Log file, useful mostly for debugging
Tune-21069-slurs.abc 30 ABC music file with the extracted tune(s)
Tune-21069-slurs.ps 6 PostScript
Tune-21069-slurs.txt 30 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.