Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/T/Stewart_SCAJMR_1784-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6174-Stewart_SCAJMR_1784-V1.ps) >>/Users/jc/w/tmp/Tune-6174-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/T/Stewart_SCAJMR_1784-V1.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-6174-Stewart_SCAJMR_1784-V1.abc 156 ABC music file with the extracted tune(s)
Tune-6174-Stewart_SCAJMR_1784-V1.ps 6 PostScript
Tune-6174-Stewart_SCAJMR_1784-V1.txt 156 Plain-text file with the extracted tune(s)
Tune-6174-get.log 4296 Log file, useful mostly for debugging
Tune-61740-get.log 7398 Log file, useful mostly for debugging
Tune-61741-get.log 3080 Log file, useful mostly for debugging
Tune-61742-get.log 16840 Log file, useful mostly for debugging
Tune-61743-get.log 3606 Log file, useful mostly for debugging
Tune-61747-get.log 3080 Log file, useful mostly for debugging
Tune-61748-get.log 3214 Log file, useful mostly for debugging
Tune-61749-get.log 13330 Log file, useful mostly for debugging
These files should be available for 24 hours.