pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2850-BarbarinisTambourine.ps) >>/Users/jc/w/tmp/Tune-2850-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/England/BarbarinisTambourine.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_28502.log 285735 Log file, useful mostly for debugging
Tune-2850-BarbarinisTambourine.abc 1244 ABC music file with the extracted tune(s)
Tune-2850-BarbarinisTambourine.ps 42206 PostScript
Tune-2850-BarbarinisTambourine.txt 1244 Plain-text file with the extracted tune(s)
Tune-2850-get.log 4614 Log file, useful mostly for debugging
Tune-28502-IslayMist.abc 2438 ABC music file with the extracted tune(s)
Tune-28502-IslayMist.ps 50882 PostScript
Tune-28502-IslayMist.txt 2438 Plain-text file with the extracted tune(s)
Tune-28502-get.log 6140 Log file, useful mostly for debugging
Tune-28506-get.log 1331 Log file, useful mostly for debugging
These files should be available for 24 hours.