Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MMM1/JamesJohnson_ScotsMusicalMuseumV4-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7455-JamesJohnson_ScotsMusicalMuseumV4-V1.ps) >>/Users/jc/w/tmp/Tune-7455-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MMM1/JamesJohnson_ScotsMusicalMuseumV4-V1.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_74555.log 159717 Log file, useful mostly for debugging
Tune-7455-JamesJohnson_ScotsMusicalMuseumV4-V1.abc 173 ABC music file with the extracted tune(s)
Tune-7455-JamesJohnson_ScotsMusicalMuseumV4-V1.ps 6 PostScript
Tune-7455-JamesJohnson_ScotsMusicalMuseumV4-V1.txt 173 Plain-text file with the extracted tune(s)
Tune-7455-get.log 4608 Log file, useful mostly for debugging
Tune-74551-24CountryDances_1776_Randall.abc 172 ABC music file with the extracted tune(s)
Tune-74551-24CountryDances_1776_Randall.txt 172 Plain-text file with the extracted tune(s)
Tune-74551-get.log 8533 Log file, useful mostly for debugging
Tune-74552-get.log 4390 Log file, useful mostly for debugging
Tune-74554-get.log 5423 Log file, useful mostly for debugging
Tune-74555-get.log 4191 Log file, useful mostly for debugging
Tune-74558-get.log 3190 Log file, useful mostly for debugging
These files should be available for 24 hours.