Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1777/CharlesZeuner_TremontQuadrilles1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6285-CharlesZeuner_TremontQuadrilles1.ps) >>/Users/jc/w/tmp/Tune-6285-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1777/CharlesZeuner_TremontQuadrilles1.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-6285-CharlesZeuner_TremontQuadrilles1.abc 169 ABC music file with the extracted tune(s)
Tune-6285-CharlesZeuner_TremontQuadrilles1.ps 6 PostScript
Tune-6285-CharlesZeuner_TremontQuadrilles1.txt 169 Plain-text file with the extracted tune(s)
Tune-6285-get.log 4526 Log file, useful mostly for debugging
Tune-62851-get.log 9997 Log file, useful mostly for debugging
Tune-62852-Goulding_TwentyFourCountryDancesForTheYear1808.abc 183 ABC music file with the extracted tune(s)
Tune-62852-Goulding_TwentyFourCountryDancesForTheYear1808.ps 6 PostScript
Tune-62852-Goulding_TwentyFourCountryDancesForTheYear1808.txt 183 Plain-text file with the extracted tune(s)
Tune-62852-get.log 4745 Log file, useful mostly for debugging
Tune-62855-JamesOswald_CPC-abc2.abc 160 ABC music file with the extracted tune(s)
Tune-62855-JamesOswald_CPC-abc2.txt 160 Plain-text file with the extracted tune(s)
Tune-62855-get.log 3380 Log file, useful mostly for debugging
Tune-62858-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.abc 190 ABC music file with the extracted tune(s)
Tune-62858-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.ps 6 PostScript
Tune-62858-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.txt 190 Plain-text file with the extracted tune(s)
Tune-62858-get.log 9547 Log file, useful mostly for debugging
These files should be available for 24 hours.