Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1785/Kerr_MM2-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9741-Kerr_MM2-V1.ps) >>/Users/jc/w/tmp/Tune-9741-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1785/Kerr_MM2-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-9741-Kerr_MM2-V1.abc 148 ABC music file with the extracted tune(s)
Tune-9741-Kerr_MM2-V1.ps 6 PostScript
Tune-9741-Kerr_MM2-V1.txt 148 Plain-text file with the extracted tune(s)
Tune-9741-get.log 4083 Log file, useful mostly for debugging
Tune-97412-MichaelDabney_12Minuets12Dances-1760-V2.abc 175 ABC music file with the extracted tune(s)
Tune-97412-MichaelDabney_12Minuets12Dances-1760-V2.ps 6 PostScript
Tune-97412-MichaelDabney_12Minuets12Dances-1760-V2.txt 175 Plain-text file with the extracted tune(s)
Tune-97412-get.log 4594 Log file, useful mostly for debugging
Tune-97413-get.log 3114 Log file, useful mostly for debugging
Tune-97413-v2tune.abc 143 ABC music file with the extracted tune(s)
Tune-97413-v2tune.txt 143 Plain-text file with the extracted tune(s)
Tune-97414-Kerr_MM3-V1.abc 148 ABC music file with the extracted tune(s)
Tune-97414-Kerr_MM3-V1.txt 148 Plain-text file with the extracted tune(s)
Tune-97414-get.log 3202 Log file, useful mostly for debugging
These files should be available for 24 hours.