Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/abc2/Kerr_MM2-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6609-Kerr_MM2-V2.ps) >>/Users/jc/w/tmp/Tune-6609-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/abc2/Kerr_MM2-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
List66097.log 162 Log file, useful mostly for debugging
Tune-6609-Kerr_MM2-V2.abc 148 ABC music file with the extracted tune(s)
Tune-6609-Kerr_MM2-V2.ps 6 PostScript
Tune-6609-Kerr_MM2-V2.txt 148 Plain-text file with the extracted tune(s)
Tune-6609-get.log 4085 Log file, useful mostly for debugging
Tune-66094-MichaelDabney_12Minuets12Dances-1760-V1.abc 176 ABC music file with the extracted tune(s)
Tune-66094-MichaelDabney_12Minuets12Dances-1760-V1.pdf 2217 Portable Data Format
Tune-66094-MichaelDabney_12Minuets12Dances-1760-V1.ps 6 PostScript
Tune-66094-MichaelDabney_12Minuets12Dances-1760-V1.txt 176 Plain-text file with the extracted tune(s)
Tune-66094-get.log 5727 Log file, useful mostly for debugging
Tune-66096-get.log 4912 Log file, useful mostly for debugging
Tune-66098-get.log 6149 Log file, useful mostly for debugging
These files should be available for 24 hours.