pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1137-Tapsalteerie2.ps) >>/Users/jc/w/tmp/Tune-1137-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/england/Tapsalteerie2.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_1137.log 1010841 Log file, useful mostly for debugging
Coll_11376.log 282925 Log file, useful mostly for debugging
Form_11376.log 946 Log file, useful mostly for debugging
Tune-1137-Tapsalteerie2.abc 920 ABC music file with the extracted tune(s)
Tune-1137-Tapsalteerie2.ps 35932 PostScript
Tune-1137-Tapsalteerie2.txt 920 Plain-text file with the extracted tune(s)
Tune-1137-get.log 4839 Log file, useful mostly for debugging
These files should be available for 24 hours.