pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-22278-Niel_Gows_Lament_For_the_Death_of_His_2nd_Wife-D-32-6.ps) >>/Users/jc/w/tmp/Tune-22278-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/session/waltz/Niel_Gows_Lament_For_the_Death_of_His_2nd_Wife-D-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-22278-Niel_Gows_Lament_For_the_Death_of_His_2nd_Wife-D-32-6.abc 1268 ABC music file with the extracted tune(s)
Tune-22278-Niel_Gows_Lament_For_the_Death_of_His_2nd_Wife-D-32-6.ps 40304 PostScript
Tune-22278-Niel_Gows_Lament_For_the_Death_of_His_2nd_Wife-D-32-6.txt 1268 Plain-text file with the extracted tune(s)
Tune-22278-get.log 40083 Log file, useful mostly for debugging
These files should be available for 24 hours.