Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1796/ThomasBraysCountryDances1699.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3555-ThomasBraysCountryDances1699.ps) >>/Users/jc/w/tmp/Tune-3555-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1796/ThomasBraysCountryDances1699.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-3555-ThomasBraysCountryDances1699.abc 165 ABC music file with the extracted tune(s)
Tune-3555-ThomasBraysCountryDances1699.ps 6 PostScript
Tune-3555-ThomasBraysCountryDances1699.txt 165 Plain-text file with the extracted tune(s)
Tune-3555-get.log 4444 Log file, useful mostly for debugging
Tune-35550-get.log 5426 Log file, useful mostly for debugging
Tune-35553-24CountryDances_1801_Preston.abc 165 ABC music file with the extracted tune(s)
Tune-35553-24CountryDances_1801_Preston.ps 6 PostScript
Tune-35553-24CountryDances_1801_Preston.txt 165 Plain-text file with the extracted tune(s)
Tune-35553-get.log 4369 Log file, useful mostly for debugging
Tune-35555-get.log 10431 Log file, useful mostly for debugging
Tune-35557-CharlesZeuner_TremontQuadrilles2.abc 169 ABC music file with the extracted tune(s)
Tune-35557-CharlesZeuner_TremontQuadrilles2.ps 6 PostScript
Tune-35557-CharlesZeuner_TremontQuadrilles2.txt 169 Plain-text file with the extracted tune(s)
Tune-35557-get.log 4453 Log file, useful mostly for debugging
These files should be available for 24 hours.