Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/SDA/JamesOswald_CPC-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7096-JamesOswald_CPC-abc1.ps) >>/Users/jc/w/tmp/Tune-7096-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SDA/JamesOswald_CPC-abc1.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-7096-JamesOswald_CPC-abc1.abc 156 ABC music file with the extracted tune(s)
Tune-7096-JamesOswald_CPC-abc1.ps 6 PostScript
Tune-7096-JamesOswald_CPC-abc1.txt 156 Plain-text file with the extracted tune(s)
Tune-7096-get.log 4268 Log file, useful mostly for debugging
Tune-70962-WilliamCampbell_10thBook_1798-V1.abc 173 ABC music file with the extracted tune(s)
Tune-70962-WilliamCampbell_10thBook_1798-V1.txt 173 Plain-text file with the extracted tune(s)
Tune-70962-get.log 3604 Log file, useful mostly for debugging
Tune-70964-get.log 4530 Log file, useful mostly for debugging
Tune-70965-get.log 3050 Log file, useful mostly for debugging
Tune-70967-JamesJohnson_ScotsMusicalMuseumV4-V2.abc 173 ABC music file with the extracted tune(s)
Tune-70967-JamesJohnson_ScotsMusicalMuseumV4-V2.ps 6 PostScript
Tune-70967-JamesJohnson_ScotsMusicalMuseumV4-V2.txt 173 Plain-text file with the extracted tune(s)
Tune-70967-get.log 7751 Log file, useful mostly for debugging
These files should be available for 24 hours.