Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/D78/Kerr_MM3-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9879-Kerr_MM3-V2.ps) >>/Users/jc/w/tmp/Tune-9879-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/D78/Kerr_MM3-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_98795.log 137133 Log file, useful mostly for debugging
Form_98795.log 1718 Log file, useful mostly for debugging
Tune-9879-Kerr_MM3-V2.abc 147 ABC music file with the extracted tune(s)
Tune-9879-Kerr_MM3-V2.ps 6 PostScript
Tune-9879-Kerr_MM3-V2.txt 147 Plain-text file with the extracted tune(s)
Tune-9879-get.log 12169 Log file, useful mostly for debugging
Tune-98790-get.log 9654 Log file, useful mostly for debugging
Tune-98792-get.log 4903 Log file, useful mostly for debugging
Tune-98793-get.log 4388 Log file, useful mostly for debugging
Tune-98794-MichaelDabney_12Minuets12Dances-1760-V1.abc 186 ABC music file with the extracted tune(s)
Tune-98794-MichaelDabney_12Minuets12Dances-1760-V1.ps 6 PostScript
Tune-98794-MichaelDabney_12Minuets12Dances-1760-V1.txt 186 Plain-text file with the extracted tune(s)
Tune-98794-get.log 18372 Log file, useful mostly for debugging
Tune-98795-get.log 5899 Log file, useful mostly for debugging
Tune-98799-get.log 4364 Log file, useful mostly for debugging
These files should be available for 24 hours.