pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24546-RJ_2019_Set3.ps) >>/Users/jc/w/tmp/Tune-24546-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Contra/RJ_2019_Set3.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_24546.log 1692951 Log file, useful mostly for debugging
Tune-24546-RJ_2019_Set3.abc 1333 ABC music file with the extracted tune(s)
Tune-24546-RJ_2019_Set3.ps 42727 PostScript
Tune-24546-RJ_2019_Set3.txt 1333 Plain-text file with the extracted tune(s)
Tune-24546-get.log 5836 Log file, useful mostly for debugging
These files should be available for 24 hours.