pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-39149-4282.ps) >>/Users/jc/w/tmp/Tune-39149-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR/4282=the_Ploughman.abc2.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-39149-4282.abc 1267 ABC music file with the extracted tune(s)
Tune-39149-4282.ps 41546 PostScript
Tune-39149-4282.txt 1267 Plain-text file with the extracted tune(s)
Tune-39149-get.log 4827 Log file, useful mostly for debugging
These files should be available for 24 hours.