Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book23/24CountryDances_1766_various.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1104-24CountryDances_1766_various.ps) >>/Users/jc/w/tmp/Tune-1104-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book23/24CountryDances_1766_various.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_11043.log 166867 Log file, useful mostly for debugging
Tune-1104-24CountryDances_1766_various.abc 167 ABC music file with the extracted tune(s)
Tune-1104-24CountryDances_1766_various.ps 6 PostScript
Tune-1104-24CountryDances_1766_various.txt 167 Plain-text file with the extracted tune(s)
Tune-1104-get.log 4454 Log file, useful mostly for debugging
Tune-11040-get.log 4021 Log file, useful mostly for debugging
Tune-11044-get.log 3921 Log file, useful mostly for debugging
Tune-11045-get.log 4433 Log file, useful mostly for debugging
Tune-11046-CaledonianMusicalRepository.abc 163 ABC music file with the extracted tune(s)
Tune-11046-CaledonianMusicalRepository.txt 163 Plain-text file with the extracted tune(s)
Tune-11046-get.log 3482 Log file, useful mostly for debugging
These files should be available for 24 hours.