pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4724-Saults_Favorite-F-32-4.ps) >>/Users/jc/w/tmp/Tune-4724-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/hornpipe/Saults_Favorite-F-32-4.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-4724-Saults_Favorite-F-32-4.abc 546 ABC music file with the extracted tune(s)
Tune-4724-Saults_Favorite-F-32-4.ps 37674 PostScript
Tune-4724-Saults_Favorite-F-32-4.txt 546 Plain-text file with the extracted tune(s)
Tune-4724-get.log 4806 Log file, useful mostly for debugging
Tune-47241-get.log 4549 Log file, useful mostly for debugging
Tune-47246-get.log 7520 Log file, useful mostly for debugging
Tune-47248-get.log 1440 Log file, useful mostly for debugging
These files should be available for 24 hours.