pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-65861-011_page.ps) >>/Users/jc/w/tmp/Tune-65861-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JamesScottSkinner/The_Scottish_Violinist/011_page.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_65861.log 564445 Log file, useful mostly for debugging
Tune-65861-011_page.abc 33 ABC music file with the extracted tune(s)
Tune-65861-011_page.ps 30551 PostScript
Tune-65861-011_page.txt 33 Plain-text file with the extracted tune(s)
Tune-65861-get.log 4123 Log file, useful mostly for debugging
These files should be available for 24 hours.