pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7892-NigunSameach_Gm.ps) >>/Users/jc/w/tmp/Tune-7892-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/KC/NigunSameach_Gm.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-7892-NigunSameach_Gm.abc 1451 ABC music file with the extracted tune(s)
Tune-7892-NigunSameach_Gm.ps 47614 PostScript
Tune-7892-NigunSameach_Gm.txt 1451 Plain-text file with the extracted tune(s)
Tune-7892-get.log 4879 Log file, useful mostly for debugging
Tune-78920-get.log 1384 Log file, useful mostly for debugging
Tune-78921-get.log 14103 Log file, useful mostly for debugging
Tune-78921-tunes.abc 14242 ABC music file with the extracted tune(s)
Tune-78921-tunes.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-78921-tunes.ps 95913 PostScript
Tune-78921-tunes.txt 14242 Plain-text file with the extracted tune(s)
Tune-78922-get.log 4326 Log file, useful mostly for debugging
Tune-78923-get.log 4142 Log file, useful mostly for debugging
Tune-78924-get.log 4161 Log file, useful mostly for debugging
Tune-78925-get.log 21314 Log file, useful mostly for debugging
Tune-78926-get.log 1384 Log file, useful mostly for debugging
Tune-78929-get.log 4133 Log file, useful mostly for debugging
These files should be available for 24 hours.