Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/CSR/Kerr_MM1-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3739-Kerr_MM1-V2.ps) >>/Users/jc/w/tmp/Tune-3739-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CSR/Kerr_MM1-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
Form_37395.log 822 Log file, useful mostly for debugging
Tune-3739-Kerr_MM1-V2.abc 147 ABC music file with the extracted tune(s)
Tune-3739-Kerr_MM1-V2.ps 6 PostScript
Tune-3739-Kerr_MM1-V2.txt 147 Plain-text file with the extracted tune(s)
Tune-3739-get.log 4079 Log file, useful mostly for debugging
Tune-37393-get.log 5065 Log file, useful mostly for debugging
Tune-37394-11271_.abc 33 ABC music file with the extracted tune(s)
Tune-37394-11271_.pdf 2217 Portable Data Format
Tune-37394-11271_.ps 6 PostScript
Tune-37394-11271_.txt 33 Plain-text file with the extracted tune(s)
Tune-37394-get.log 4765 Log file, useful mostly for debugging
Tune-37398-Round_Band_Book_of_Playford.abc 164 ABC music file with the extracted tune(s)
Tune-37398-Round_Band_Book_of_Playford.ps 6 PostScript
Tune-37398-Round_Band_Book_of_Playford.txt 164 Plain-text file with the extracted tune(s)
Tune-37398-get.log 4473 Log file, useful mostly for debugging
These files should be available for 24 hours.