Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1748/Jean_Henry_dAnglebert_PdC1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1650-Jean_Henry_dAnglebert_PdC1.ps) >>/Users/jc/w/tmp/Tune-1650-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1748/Jean_Henry_dAnglebert_PdC1.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-1650-Jean_Henry_dAnglebert_PdC1.abc 163 ABC music file with the extracted tune(s)
Tune-1650-Jean_Henry_dAnglebert_PdC1.ps 6 PostScript
Tune-1650-Jean_Henry_dAnglebert_PdC1.txt 163 Plain-text file with the extracted tune(s)
Tune-1650-get.log 4398 Log file, useful mostly for debugging
Tune-16505-Stewart_SCAJMR_1784-V2.abc 159 ABC music file with the extracted tune(s)
Tune-16505-Stewart_SCAJMR_1784-V2.txt 159 Plain-text file with the extracted tune(s)
Tune-16505-get.log 3400 Log file, useful mostly for debugging
Tune-16508-Kohlers3.abc 144 ABC music file with the extracted tune(s)
Tune-16508-Kohlers3.pdf 2217 Portable Data Format
Tune-16508-Kohlers3.ps 6 PostScript
Tune-16508-Kohlers3.txt 144 Plain-text file with the extracted tune(s)
Tune-16508-get.log 4820 Log file, useful mostly for debugging
Tune-16509-get.log 3506 Log file, useful mostly for debugging
These files should be available for 24 hours.