pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-35895-FakeBook_C.ps) >>/Users/jc/w/tmp/Tune-35895-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/fake/FakeBook_C.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-35895-FakeBook_C.abc 15949 ABC music file with the extracted tune(s)
Tune-35895-FakeBook_C.ps 219115 PostScript
Tune-35895-FakeBook_C.txt 15949 Plain-text file with the extracted tune(s)
Tune-35895-get.log 22184 Log file, useful mostly for debugging
These files should be available for 24 hours.