Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book22/24CountryDances_1801_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5112-24CountryDances_1801_Preston.ps) >>/Users/jc/w/tmp/Tune-5112-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book22/24CountryDances_1801_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
Coll_51125.log 1305680 Log file, useful mostly for debugging
Tune-5112-24CountryDances_1801_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-5112-24CountryDances_1801_Preston.ps 6 PostScript
Tune-5112-24CountryDances_1801_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-5112-get.log 4458 Log file, useful mostly for debugging
Tune-51121-get.log 5879 Log file, useful mostly for debugging
Tune-51124-24CountryDances_1804TP_Preston.abc 168 ABC music file with the extracted tune(s)
Tune-51124-24CountryDances_1804TP_Preston.ps 6 PostScript
Tune-51124-24CountryDances_1804TP_Preston.txt 168 Plain-text file with the extracted tune(s)
Tune-51124-get.log 4538 Log file, useful mostly for debugging
Tune-51125-24CountryDances_1776_Thompson.abc 165 ABC music file with the extracted tune(s)
Tune-51125-24CountryDances_1776_Thompson.txt 165 Plain-text file with the extracted tune(s)
Tune-51125-get.log 3522 Log file, useful mostly for debugging
Tune-51129-get.log 5761 Log file, useful mostly for debugging
These files should be available for 24 hours.