Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1753/CaledonianMusicalRepository_1811.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5805-CaledonianMusicalRepository_1811.ps) >>/Users/jc/w/tmp/Tune-5805-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1753/CaledonianMusicalRepository_1811.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_58050.log 287140 Log file, useful mostly for debugging
Coll_58052.log 282925 Log file, useful mostly for debugging
Tune-5805-CaledonianMusicalRepository_1811.abc 169 ABC music file with the extracted tune(s)
Tune-5805-CaledonianMusicalRepository_1811.ps 6 PostScript
Tune-5805-CaledonianMusicalRepository_1811.txt 169 Plain-text file with the extracted tune(s)
Tune-5805-get.log 4526 Log file, useful mostly for debugging
Tune-58052-24CountryDances_1810_Button_Whitaker.abc 175 ABC music file with the extracted tune(s)
Tune-58052-24CountryDances_1810_Button_Whitaker.ps 6 PostScript
Tune-58052-24CountryDances_1810_Button_Whitaker.txt 175 Plain-text file with the extracted tune(s)
Tune-58052-get.log 4674 Log file, useful mostly for debugging
Tune-58055-get.log 5504 Log file, useful mostly for debugging
These files should be available for 24 hours.