pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67745-10663_Soldiers_Joy.ps) >>/Users/jc/w/tmp/Tune-67745-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/10663_Soldiers_Joy.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_67745.log 1092 Log file, useful mostly for debugging
Form_67745.log 874 Log file, useful mostly for debugging
Tune-67745-10663_Soldiers_Joy.abc 676 ABC music file with the extracted tune(s)
Tune-67745-10663_Soldiers_Joy.ps 34626 PostScript
Tune-67745-10663_Soldiers_Joy.txt 676 Plain-text file with the extracted tune(s)
Tune-67745-get.log 4887 Log file, useful mostly for debugging
These files should be available for 24 hours.