pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21407-Aald_Stor_Back_Again_Em.ps) >>/Users/jc/w/tmp/Tune-21407-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/Aald_Stor_Back_Again_Em.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-21407-Aald_Stor_Back_Again_Em.abc 477 ABC music file with the extracted tune(s)
Tune-21407-Aald_Stor_Back_Again_Em.ps 35501 PostScript
Tune-21407-Aald_Stor_Back_Again_Em.txt 477 Plain-text file with the extracted tune(s)
Tune-21407-get.log 12538 Log file, useful mostly for debugging
These files should be available for 24 hours.