pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-71932-CR77.ps) >>/Users/jc/w/tmp/Tune-71932-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/contra/CR77.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-71932-CR77.abc 1996 ABC music file with the extracted tune(s)
Tune-71932-CR77.ps 47798 PostScript
Tune-71932-CR77.txt 1996 Plain-text file with the extracted tune(s)
Tune-71932-get.log 4297 Log file, useful mostly for debugging
These files should be available for 24 hours.