Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Compleat_Tutor/Kerr_MM2-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7502-Kerr_MM2-V2.ps) >>/Users/jc/w/tmp/Tune-7502-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Compleat_Tutor/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
Coll_75021.log 529322 Log file, useful mostly for debugging
Form_75025.log 831 Log file, useful mostly for debugging
Tune-7502-Kerr_MM2-V2.abc 158 ABC music file with the extracted tune(s)
Tune-7502-Kerr_MM2-V2.ps 6 PostScript
Tune-7502-Kerr_MM2-V2.txt 158 Plain-text file with the extracted tune(s)
Tune-7502-get.log 9800 Log file, useful mostly for debugging
Tune-75022-get.log 5961 Log file, useful mostly for debugging
Tune-75025-get.log 5479 Log file, useful mostly for debugging
Tune-75026-get.log 4285 Log file, useful mostly for debugging
Tune-75029-get.log 3126 Log file, useful mostly for debugging
These files should be available for 24 hours.