Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/tune/FOEFDA.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6353-FOEFDA.ps) >>/Users/jc/w/tmp/Tune-6353-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/tune/FOEFDA.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_63530.log 469610 Log file, useful mostly for debugging
Coll_63537.log 734819 Log file, useful mostly for debugging
Coll_63538.log 1025228 Log file, useful mostly for debugging
Tune-6353-FOEFDA.abc 143 ABC music file with the extracted tune(s)
Tune-6353-FOEFDA.ps 6 PostScript
Tune-6353-FOEFDA.txt 143 Plain-text file with the extracted tune(s)
Tune-6353-get.log 3984 Log file, useful mostly for debugging
Tune-63534-get.log 5689 Log file, useful mostly for debugging
Tune-63538-get.log 3226 Log file, useful mostly for debugging
Tune-63539-get.log 5656 Log file, useful mostly for debugging
These files should be available for 24 hours.