pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5384-Dedicado_a_Jos_RJ.ps) >>/Users/jc/w/tmp/Tune-5384-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Contra/Dedicado_a_Jos_RJ.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_53843.log 320860 Log file, useful mostly for debugging
Tune-5384-Dedicado_a_Jos_RJ.abc 1060 ABC music file with the extracted tune(s)
Tune-5384-Dedicado_a_Jos_RJ.ps 42548 PostScript
Tune-5384-Dedicado_a_Jos_RJ.txt 1060 Plain-text file with the extracted tune(s)
Tune-5384-get.log 4467 Log file, useful mostly for debugging
Tune-53846-get.log 5408 Log file, useful mostly for debugging
Tune-53847-get.log 3528 Log file, useful mostly for debugging
These files should be available for 24 hours.