Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1793/24CountryDances_1780_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9941-24CountryDances_1780_Thompson.ps) >>/Users/jc/w/tmp/Tune-9941-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1793/24CountryDances_1780_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-9941-24CountryDances_1780_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-9941-24CountryDances_1780_Thompson.ps 6 PostScript
Tune-9941-24CountryDances_1780_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-9941-get.log 4463 Log file, useful mostly for debugging
Tune-99411-21072_Bayaders_Sett_tune_5.abc 1004 ABC music file with the extracted tune(s)
Tune-99411-21072_Bayaders_Sett_tune_5.ps 35816 PostScript
Tune-99411-21072_Bayaders_Sett_tune_5.txt 1004 Plain-text file with the extracted tune(s)
Tune-99411-get.log 5078 Log file, useful mostly for debugging
Tune-99413-get.log 4556 Log file, useful mostly for debugging
Tune-99414-21442_Algerine_Sett_tune_2.abc 1025 ABC music file with the extracted tune(s)
Tune-99414-21442_Algerine_Sett_tune_2.pdf 19727 Portable Data Format
Tune-99414-21442_Algerine_Sett_tune_2.ps 35924 PostScript
Tune-99414-21442_Algerine_Sett_tune_2.txt 1025 Plain-text file with the extracted tune(s)
Tune-99414-get.log 5976 Log file, useful mostly for debugging
These files should be available for 24 hours.