Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NewColl44Cot/dim.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7184-dim.ps) >>/Users/jc/w/tmp/Tune-7184-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NewColl44Cot/dim.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-7184-dim.abc 148 ABC music file with the extracted tune(s)
Tune-7184-dim.ps 6 PostScript
Tune-7184-dim.txt 148 Plain-text file with the extracted tune(s)
Tune-7184-get.log 3963 Log file, useful mostly for debugging
Tune-71841-get.log 3364 Log file, useful mostly for debugging
Tune-71842-get.log 5533 Log file, useful mostly for debugging
Tune-71843-get.log 4929 Log file, useful mostly for debugging
Tune-71845-get.log 9506 Log file, useful mostly for debugging
Tune-71846-get.log 4661 Log file, useful mostly for debugging
Tune-71847-get.log 12892 Log file, useful mostly for debugging
Tune-71848-CaledonianCountryDances.abc 161 ABC music file with the extracted tune(s)
Tune-71848-CaledonianCountryDances.pdf 2217 Portable Data Format
Tune-71848-CaledonianCountryDances.ps 6 PostScript
Tune-71848-CaledonianCountryDances.txt 161 Plain-text file with the extracted tune(s)
Tune-71848-get.log 5267 Log file, useful mostly for debugging
Tune-71849-get.log 9952 Log file, useful mostly for debugging
These files should be available for 24 hours.