Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/slide/JohnJohnson_ChoiceCollectionVol8-VMP.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6651-JohnJohnson_ChoiceCollectionVol8-VMP.ps) >>/Users/jc/w/tmp/Tune-6651-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/slide/JohnJohnson_ChoiceCollectionVol8-VMP.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_66518.log 1599 Log file, useful mostly for debugging
Tune-6651-JohnJohnson_ChoiceCollectionVol8-VMP.abc 174 ABC music file with the extracted tune(s)
Tune-6651-JohnJohnson_ChoiceCollectionVol8-VMP.ps 6 PostScript
Tune-6651-JohnJohnson_ChoiceCollectionVol8-VMP.txt 174 Plain-text file with the extracted tune(s)
Tune-6651-get.log 4616 Log file, useful mostly for debugging
Tune-66510-get.log 10815 Log file, useful mostly for debugging
Tune-66511-Round_Band_Book_of_Playford.abc 164 ABC music file with the extracted tune(s)
Tune-66511-Round_Band_Book_of_Playford.ps 6 PostScript
Tune-66511-Round_Band_Book_of_Playford.txt 164 Plain-text file with the extracted tune(s)
Tune-66511-get.log 10482 Log file, useful mostly for debugging
Tune-66514-get.log 3486 Log file, useful mostly for debugging
Tune-66515-get.log 4607 Log file, useful mostly for debugging
Tune-66518-24CountryDances_1748_TDavis.abc 164 ABC music file with the extracted tune(s)
Tune-66518-24CountryDances_1748_TDavis.ps 6 PostScript
Tune-66518-24CountryDances_1748_TDavis.txt 164 Plain-text file with the extracted tune(s)
Tune-66518-get.log 7607 Log file, useful mostly for debugging
Tune-66519-get.log 5706 Log file, useful mostly for debugging
These files should be available for 24 hours.