Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1810/CSGBT_1794-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2961-CSGBT_1794-V1.ps) >>/Users/jc/w/tmp/Tune-2961-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1810/CSGBT_1794-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-2961-CSGBT_1794-V1.abc 150 ABC music file with the extracted tune(s)
Tune-2961-CSGBT_1794-V1.ps 6 PostScript
Tune-2961-CSGBT_1794-V1.txt 150 Plain-text file with the extracted tune(s)
Tune-2961-get.log 14590 Log file, useful mostly for debugging
Tune-29611-get.log 5795 Log file, useful mostly for debugging
Tune-29612-get.log 3268 Log file, useful mostly for debugging
Tune-29613-George_Meikle.abc 150 ABC music file with the extracted tune(s)
Tune-29613-George_Meikle.ps 6 PostScript
Tune-29613-George_Meikle.txt 150 Plain-text file with the extracted tune(s)
Tune-29613-get.log 4052 Log file, useful mostly for debugging
Tune-29615-Vigo_1703_PLFD1_518_CP.abc 365 ABC music file with the extracted tune(s)
Tune-29615-Vigo_1703_PLFD1_518_CP.ps 33787 PostScript
Tune-29615-Vigo_1703_PLFD1_518_CP.txt 365 Plain-text file with the extracted tune(s)
Tune-29615-get.log 4783 Log file, useful mostly for debugging
These files should be available for 24 hours.