Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1750/24CountryDances_1809_Cahusac_AK.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8334-24CountryDances_1809_Cahusac_AK.ps) >>/Users/jc/w/tmp/Tune-8334-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1750/24CountryDances_1809_Cahusac_AK.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-8334-24CountryDances_1809_Cahusac_AK.abc 168 ABC music file with the extracted tune(s)
Tune-8334-24CountryDances_1809_Cahusac_AK.ps 6 PostScript
Tune-8334-24CountryDances_1809_Cahusac_AK.txt 168 Plain-text file with the extracted tune(s)
Tune-8334-get.log 4505 Log file, useful mostly for debugging
Tune-83343-get.log 3896 Log file, useful mostly for debugging
Tune-83344-24CountryDances_1826_Goulding_dAlmaine.abc 175 ABC music file with the extracted tune(s)
Tune-83344-24CountryDances_1826_Goulding_dAlmaine.ps 6 PostScript
Tune-83344-24CountryDances_1826_Goulding_dAlmaine.txt 175 Plain-text file with the extracted tune(s)
Tune-83344-get.log 4702 Log file, useful mostly for debugging
Tune-83345-get.log 4467 Log file, useful mostly for debugging
Tune-83347-get.log 4463 Log file, useful mostly for debugging
These files should be available for 24 hours.