Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book23/24CountryDances_1800_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7888-24CountryDances_1800_Preston.ps) >>/Users/jc/w/tmp/Tune-7888-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book23/24CountryDances_1800_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-7888-24CountryDances_1800_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-7888-24CountryDances_1800_Preston.ps 6 PostScript
Tune-7888-24CountryDances_1800_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-7888-get.log 14130 Log file, useful mostly for debugging
Tune-78880-get.log 3224 Log file, useful mostly for debugging
Tune-78881-get.log 9856 Log file, useful mostly for debugging
Tune-78883-get.log 12469 Log file, useful mostly for debugging
Tune-78885-Wilson_Harmony_4NCD_1812_V2.abc 166 ABC music file with the extracted tune(s)
Tune-78885-Wilson_Harmony_4NCD_1812_V2.txt 166 Plain-text file with the extracted tune(s)
Tune-78885-get.log 7052 Log file, useful mostly for debugging
Tune-78887-get.log 3500 Log file, useful mostly for debugging
Tune-78888-get.log 3542 Log file, useful mostly for debugging
These files should be available for 24 hours.