pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-51600-076_Ross_House.ps) >>/Users/jc/w/tmp/Tune-51600-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Straight_Skillern/076_Ross_House.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_51600.log 873 Log file, useful mostly for debugging
Tune-51600-076_Ross_House.abc 738 ABC music file with the extracted tune(s)
Tune-51600-076_Ross_House.ps 33094 PostScript
Tune-51600-076_Ross_House.txt 738 Plain-text file with the extracted tune(s)
Tune-51600-get.log 51611 Log file, useful mostly for debugging
These files should be available for 24 hours.