pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9432-CJ70.ps) >>/Users/jc/w/tmp/Tune-9432-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Contra/CJ70.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_94328.log 837 Log file, useful mostly for debugging
Tune-9432-CJ70.abc 1977 ABC music file with the extracted tune(s)
Tune-9432-CJ70.ps 50280 PostScript
Tune-9432-CJ70.txt 1977 Plain-text file with the extracted tune(s)
Tune-9432-get.log 4355 Log file, useful mostly for debugging
Tune-94320-get.log 16466 Log file, useful mostly for debugging
Tune-94323-CR05-001.svg 54385 Scalable Vector Graphics format
Tune-94323-CR05.abc 2380 ABC music file with the extracted tune(s)
Tune-94323-CR05.txt 2380 Plain-text file with the extracted tune(s)
Tune-94323-get.log 3943 Log file, useful mostly for debugging
Tune-94327-get.log 4751 Log file, useful mostly for debugging
These files should be available for 24 hours.