pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-72455-LakeGeneva.ps) >>/Users/jc/w/tmp/Tune-72455-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Scotland/LakeGeneva.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-72455-LakeGeneva.abc 2054 ABC music file with the extracted tune(s)
Tune-72455-LakeGeneva.ps 49343 PostScript
Tune-72455-LakeGeneva.txt 2054 Plain-text file with the extracted tune(s)
Tune-72455-get.log 4811 Log file, useful mostly for debugging
These files should be available for 24 hours.