pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20051-KR16_B.ps) >>/Users/jc/w/tmp/Tune-20051-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/KC/KR16_B.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-20051-KR16_B.abc 1948 ABC music file with the extracted tune(s)
Tune-20051-KR16_B.ps 47922 PostScript
Tune-20051-KR16_B.txt 1948 Plain-text file with the extracted tune(s)
Tune-20051-get.log 4246 Log file, useful mostly for debugging
These files should be available for 24 hours.