Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/mixed/Wilson_Harmony_4NCD_1812_V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3835-Wilson_Harmony_4NCD_1812_V2.ps) >>/Users/jc/w/tmp/Tune-3835-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/mixed/Wilson_Harmony_4NCD_1812_V2.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_3835.log 922420 Log file, useful mostly for debugging
Coll_38351.log 283410 Log file, useful mostly for debugging
Coll_38353.log 270810 Log file, useful mostly for debugging
Coll_38356.log 144 Log file, useful mostly for debugging
Tune-3835-Wilson_Harmony_4NCD_1812_V2.abc 165 ABC music file with the extracted tune(s)
Tune-3835-Wilson_Harmony_4NCD_1812_V2.ps 6 PostScript
Tune-3835-Wilson_Harmony_4NCD_1812_V2.txt 165 Plain-text file with the extracted tune(s)
Tune-3835-get.log 10337 Log file, useful mostly for debugging
Tune-38356-get.log 5419 Log file, useful mostly for debugging
Tune-38358-get.log 5574 Log file, useful mostly for debugging
Tune-38359-get.log 3906 Log file, useful mostly for debugging
These files should be available for 24 hours.