pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20173-Brenda_Stubbert-A-32-6.ps) >>/Users/jc/w/tmp/Tune-20173-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/Brenda_Stubbert-A-32-6.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-20173-Brenda_Stubbert-A-32-6.abc 946 ABC music file with the extracted tune(s)
Tune-20173-Brenda_Stubbert-A-32-6.ps 37697 PostScript
Tune-20173-Brenda_Stubbert-A-32-6.txt 946 Plain-text file with the extracted tune(s)
Tune-20173-get.log 4682 Log file, useful mostly for debugging
These files should be available for 24 hours.