pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-75131-10431_FIFE_STRATHSPEY.ps) >>/Users/jc/w/tmp/Tune-75131-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/10431_FIFE_STRATHSPEY.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_75131.log 140225 Log file, useful mostly for debugging
Form_75131.log 1690 Log file, useful mostly for debugging
Tune-75131-10431_FIFE_STRATHSPEY.abc 735 ABC music file with the extracted tune(s)
Tune-75131-10431_FIFE_STRATHSPEY.ps 38898 PostScript
Tune-75131-10431_FIFE_STRATHSPEY.txt 735 Plain-text file with the extracted tune(s)
Tune-75131-get.log 8379 Log file, useful mostly for debugging
These files should be available for 24 hours.