pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2792-21221_THE_HUNTSMANS_CHORUS.ps) >>/Users/jc/w/tmp/Tune-2792-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/21221_THE_HUNTSMANS_CHORUS.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_27923.log 138290 Log file, useful mostly for debugging
Coll_27925.log 134418 Log file, useful mostly for debugging
Coll_27928.log 754125 Log file, useful mostly for debugging
Form_27924.log 1747 Log file, useful mostly for debugging
Form_27926.log 812 Log file, useful mostly for debugging
Tune-2792-21221_THE_HUNTSMANS_CHORUS.abc 1177 ABC music file with the extracted tune(s)
Tune-2792-21221_THE_HUNTSMANS_CHORUS.ps 43177 PostScript
Tune-2792-21221_THE_HUNTSMANS_CHORUS.txt 1177 Plain-text file with the extracted tune(s)
Tune-2792-get.log 8386 Log file, useful mostly for debugging
These files should be available for 24 hours.