Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NS_Anniv50/JamesOswald_CPC-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6262-JamesOswald_CPC-abc2.ps) >>/Users/jc/w/tmp/Tune-6262-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NS_Anniv50/JamesOswald_CPC-abc2.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-6262-JamesOswald_CPC-abc2.abc 163 ABC music file with the extracted tune(s)
Tune-6262-JamesOswald_CPC-abc2.ps 6 PostScript
Tune-6262-JamesOswald_CPC-abc2.txt 163 Plain-text file with the extracted tune(s)
Tune-6262-get.log 8816 Log file, useful mostly for debugging
Tune-62622-get.log 5666 Log file, useful mostly for debugging
Tune-62623-get.log 3890 Log file, useful mostly for debugging
Tune-62627-4131_the_Lass_of_Livingston.abc 1291 ABC music file with the extracted tune(s)
Tune-62627-4131_the_Lass_of_Livingston.txt 1291 Plain-text file with the extracted tune(s)
Tune-62627-get.log 3914 Log file, useful mostly for debugging
Tune-62629-get.log 8447 Log file, useful mostly for debugging
These files should be available for 24 hours.