Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book39/24CountryDances_1793_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2975-24CountryDances_1793_Preston.ps) >>/Users/jc/w/tmp/Tune-2975-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book39/24CountryDances_1793_Preston.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-2975-24CountryDances_1793_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-2975-24CountryDances_1793_Preston.ps 6 PostScript
Tune-2975-24CountryDances_1793_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-2975-get.log 8337 Log file, useful mostly for debugging
Tune-29750-get.log 4130 Log file, useful mostly for debugging
Tune-29751-get.log 3448 Log file, useful mostly for debugging
Tune-29752-get.log 3598 Log file, useful mostly for debugging
Tune-29753-get.log 3376 Log file, useful mostly for debugging
Tune-29755-get.log 3949 Log file, useful mostly for debugging
Tune-29756-get.log 4001 Log file, useful mostly for debugging
Tune-29757-432_When_the_Hollow_Drum.abc 746 ABC music file with the extracted tune(s)
Tune-29757-432_When_the_Hollow_Drum.pdf 17473 Portable Data Format
Tune-29757-432_When_the_Hollow_Drum.ps 35912 PostScript
Tune-29757-432_When_the_Hollow_Drum.txt 746 Plain-text file with the extracted tune(s)
Tune-29757-get.log 7169 Log file, useful mostly for debugging
Tune-29758-get.log 4724 Log file, useful mostly for debugging
Tune-29758-sett.abc 143 ABC music file with the extracted tune(s)
Tune-29758-sett.pdf 2217 Portable Data Format
Tune-29758-sett.ps 6 PostScript
Tune-29758-sett.txt 143 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.