pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8812-KeppochsRant0.ps) >>/Users/jc/w/tmp/Tune-8812-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/KeppochsRant0.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_88123.log 97964 Log file, useful mostly for debugging
Tune-8812-KeppochsRant0.abc 1423 ABC music file with the extracted tune(s)
Tune-8812-KeppochsRant0.ps 44589 PostScript
Tune-8812-KeppochsRant0.txt 1423 Plain-text file with the extracted tune(s)
Tune-8812-get.log 4857 Log file, useful mostly for debugging
Tune-88123-get.log 4602 Log file, useful mostly for debugging
These files should be available for 24 hours.