Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book42/Wilson_Harmony_4NCD_1812_V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7600-Wilson_Harmony_4NCD_1812_V1.ps) >>/Users/jc/w/tmp/Tune-7600-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book42/Wilson_Harmony_4NCD_1812_V1.abc

Error exit status 256; here are some files to check:

[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_76002.log 153217 Log file, useful mostly for debugging
Coll_76009.log 629211 Log file, useful mostly for debugging
Tune-7600-Wilson_Harmony_4NCD_1812_V1.abc 166 ABC music file with the extracted tune(s)
Tune-7600-Wilson_Harmony_4NCD_1812_V1.ps 6 PostScript
Tune-7600-Wilson_Harmony_4NCD_1812_V1.txt 166 Plain-text file with the extracted tune(s)
Tune-7600-get.log 4435 Log file, useful mostly for debugging
Tune-76000-ThomasBraysCountryDances1699.abc 171 ABC music file with the extracted tune(s)
Tune-76000-ThomasBraysCountryDances1699.pdf 2217 Portable Data Format
Tune-76000-ThomasBraysCountryDances1699.ps 6 PostScript
Tune-76000-ThomasBraysCountryDances1699.txt 171 Plain-text file with the extracted tune(s)
Tune-76000-get.log 11186 Log file, useful mostly for debugging
Tune-76002-get.log 4355 Log file, useful mostly for debugging
Tune-76003-get.log 4539 Log file, useful mostly for debugging
Tune-76004-get.log 4557 Log file, useful mostly for debugging
Tune-76007-get.log 4735 Log file, useful mostly for debugging
These files should be available for 24 hours.