pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1037-Waltz_Wedding.ps) >>/Users/jc/w/tmp/Tune-1037-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Contra/Waltz_Wedding.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_10379.log 396730 Log file, useful mostly for debugging
Tune-1037-Waltz_Wedding.abc 2145 ABC music file with the extracted tune(s)
Tune-1037-Waltz_Wedding.ps 49516 PostScript
Tune-1037-Waltz_Wedding.txt 2145 Plain-text file with the extracted tune(s)
Tune-1037-get.log 4416 Log file, useful mostly for debugging
Tune-10370-get.log 5930 Log file, useful mostly for debugging
Tune-10371-get.log 3697 Log file, useful mostly for debugging
Tune-10373-get.log 4282 Log file, useful mostly for debugging
Tune-10379-get.log 5505 Log file, useful mostly for debugging
These files should be available for 24 hours.