Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NewColl44Cot/Kerr_MM3-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6858-Kerr_MM3-V2.ps) >>/Users/jc/w/tmp/Tune-6858-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NewColl44Cot/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
Tune-6858-Kerr_MM3-V2.abc 156 ABC music file with the extracted tune(s)
Tune-6858-Kerr_MM3-V2.ps 6 PostScript
Tune-6858-Kerr_MM3-V2.txt 156 Plain-text file with the extracted tune(s)
Tune-6858-get.log 4133 Log file, useful mostly for debugging
Tune-68582-get.log 4977 Log file, useful mostly for debugging
Tune-68583-AMHSI_abc1.abc 155 ABC music file with the extracted tune(s)
Tune-68583-AMHSI_abc1.ps 6 PostScript
Tune-68583-AMHSI_abc1.txt 155 Plain-text file with the extracted tune(s)
Tune-68583-get.log 8916 Log file, useful mostly for debugging
Tune-68586-get.log 5971 Log file, useful mostly for debugging
Tune-68588-get.log 4112 Log file, useful mostly for debugging
Tune-68589-get.log 5520 Log file, useful mostly for debugging
These files should be available for 24 hours.