pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7386-TripToTobermory0.ps) >>/Users/jc/w/tmp/Tune-7386-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Scotland/TripToTobermory0.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-7386-TripToTobermory0.abc 1202 ABC music file with the extracted tune(s)
Tune-7386-TripToTobermory0.ps 41359 PostScript
Tune-7386-TripToTobermory0.txt 1202 Plain-text file with the extracted tune(s)
Tune-7386-get.log 4971 Log file, useful mostly for debugging
Tune-73865-FF_song6.abc 378 ABC music file with the extracted tune(s)
Tune-73865-FF_song6.ps 33544 PostScript
Tune-73865-FF_song6.txt 378 Plain-text file with the extracted tune(s)
Tune-73865-get.log 4755 Log file, useful mostly for debugging
These files should be available for 24 hours.