Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/X/WilliamCampbell_10thBook_1798-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8246-WilliamCampbell_10thBook_1798-V2.ps) >>/Users/jc/w/tmp/Tune-8246-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/X/WilliamCampbell_10thBook_1798-V2.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-8246-WilliamCampbell_10thBook_1798-V2.abc 166 ABC music file with the extracted tune(s)
Tune-8246-WilliamCampbell_10thBook_1798-V2.ps 6 PostScript
Tune-8246-WilliamCampbell_10thBook_1798-V2.txt 166 Plain-text file with the extracted tune(s)
Tune-8246-get.log 4512 Log file, useful mostly for debugging
Tune-82460-24CountryDances_1780_Skillern.abc 168 ABC music file with the extracted tune(s)
Tune-82460-24CountryDances_1780_Skillern.ps 6 PostScript
Tune-82460-24CountryDances_1780_Skillern.txt 168 Plain-text file with the extracted tune(s)
Tune-82460-get.log 4406 Log file, useful mostly for debugging
Tune-82464-get.log 4448 Log file, useful mostly for debugging
These files should be available for 24 hours.