Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Gow/CSR4-abc2.pdf/CSR-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7140-CSR-abc1.ps) >>/Users/jc/w/tmp/Tune-7140-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR4-abc2.pdf/CSR-abc1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Sess-71404.log 413448 Log file, useful mostly for debugging
Tune-7140-CSR-abc1.abc 158 ABC music file with the extracted tune(s)
Tune-7140-CSR-abc1.ps 6 PostScript
Tune-7140-CSR-abc1.txt 158 Plain-text file with the extracted tune(s)
Tune-7140-get.log 7348 Log file, useful mostly for debugging
Tune-71400-get.log 4846 Log file, useful mostly for debugging
Tune-71401-get.log 5036 Log file, useful mostly for debugging
Tune-71402-get.log 8834 Log file, useful mostly for debugging
Tune-71406-get.log 6563 Log file, useful mostly for debugging
Tune-71407-get.log 3526 Log file, useful mostly for debugging
Tune-71408-JohnJohnson_ChoiceCollectionVol8-VMP.abc 173 ABC music file with the extracted tune(s)
Tune-71408-JohnJohnson_ChoiceCollectionVol8-VMP.ps 6 PostScript
Tune-71408-JohnJohnson_ChoiceCollectionVol8-VMP.txt 173 Plain-text file with the extracted tune(s)
Tune-71408-get.log 4658 Log file, useful mostly for debugging
These files should be available for 24 hours.