Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Crystal/BB50.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1233-BB50.ps) >>/Users/jc/w/tmp/Tune-1233-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Crystal/BB50.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_12335.log 1503 Log file, useful mostly for debugging
Sess-12339.log 163737 Log file, useful mostly for debugging
Tune-1233-BB50.abc 144 ABC music file with the extracted tune(s)
Tune-1233-BB50.ps 6 PostScript
Tune-1233-BB50.txt 144 Plain-text file with the extracted tune(s)
Tune-1233-get.log 3958 Log file, useful mostly for debugging
Tune-12331-get.log 10034 Log file, useful mostly for debugging
Tune-12332-get.log 3204 Log file, useful mostly for debugging
Tune-12333-get.log 4002 Log file, useful mostly for debugging
Tune-12334-get.log 7639 Log file, useful mostly for debugging
Tune-12335-get.log 8237 Log file, useful mostly for debugging
Tune-12338-get.log 4724 Log file, useful mostly for debugging
Tune-12339-get.log 4219 Log file, useful mostly for debugging
These files should be available for 24 hours.