Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book04/24AmericanCountryDances_1785_Cantelo.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6168-24AmericanCountryDances_1785_Cantelo.ps) >>/Users/jc/w/tmp/Tune-6168-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book04/24AmericanCountryDances_1785_Cantelo.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_61686.log 914 Log file, useful mostly for debugging
Tune-6168-24AmericanCountryDances_1785_Cantelo.abc 175 ABC music file with the extracted tune(s)
Tune-6168-24AmericanCountryDances_1785_Cantelo.ps 6 PostScript
Tune-6168-24AmericanCountryDances_1785_Cantelo.txt 175 Plain-text file with the extracted tune(s)
Tune-6168-get.log 4618 Log file, useful mostly for debugging
Tune-61680-get.log 9186 Log file, useful mostly for debugging
Tune-61685-get.log 3263 Log file, useful mostly for debugging
Tune-61687-24CountryDances_1776_Thompson.abc 179 ABC music file with the extracted tune(s)
Tune-61687-24CountryDances_1776_Thompson.txt 179 Plain-text file with the extracted tune(s)
Tune-61687-get.log 3602 Log file, useful mostly for debugging
Tune-61689-get.log 6023 Log file, useful mostly for debugging
These files should be available for 24 hours.