pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-87494-32221_THE_LAIRD_O_COCKPEN.ps) >>/Users/jc/w/tmp/Tune-87494-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/32221_THE_LAIRD_O_COCKPEN.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_87494.log 545664 Log file, useful mostly for debugging
Tune-87494-3000_Title-001.svg 2128 Scalable Vector Graphics format
Tune-87494-3000_Title.abc 486 ABC music file with the extracted tune(s)
Tune-87494-3000_Title.txt 486 Plain-text file with the extracted tune(s)
Tune-87494-32221_THE_LAIRD_O_COCKPEN.abc 2676 ABC music file with the extracted tune(s)
Tune-87494-32221_THE_LAIRD_O_COCKPEN.ps 60252 PostScript
Tune-87494-32221_THE_LAIRD_O_COCKPEN.txt 2676 Plain-text file with the extracted tune(s)
Tune-87494-get.log 9285 Log file, useful mostly for debugging
These files should be available for 24 hours.