Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1783/24CountryDances_1804_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6347-24CountryDances_1804_Thompson.ps) >>/Users/jc/w/tmp/Tune-6347-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1783/24CountryDances_1804_Thompson.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-6347-24CountryDances_1804_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-6347-24CountryDances_1804_Thompson.ps 6 PostScript
Tune-6347-24CountryDances_1804_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-6347-get.log 8414 Log file, useful mostly for debugging
Tune-63470-get.log 3275 Log file, useful mostly for debugging
Tune-63472-get.log 3602 Log file, useful mostly for debugging
Tune-63473-get.log 1496 Log file, useful mostly for debugging
Tune-63474-Tra_veglia_e_sonno_Dm6.abc 1061 ABC music file with the extracted tune(s)
Tune-63474-Tra_veglia_e_sonno_Dm6.pdf 36209 Portable Data Format
Tune-63474-Tra_veglia_e_sonno_Dm6.ps 41520 PostScript
Tune-63474-Tra_veglia_e_sonno_Dm6.txt 1061 Plain-text file with the extracted tune(s)
Tune-63474-get.log 6212 Log file, useful mostly for debugging
Tune-63478-get.log 4576 Log file, useful mostly for debugging
These files should be available for 24 hours.