Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1804/EverydaySongBook1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9989-EverydaySongBook1.ps) >>/Users/jc/w/tmp/Tune-9989-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1804/EverydaySongBook1.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-9989-EverydaySongBook1.abc 154 ABC music file with the extracted tune(s)
Tune-9989-EverydaySongBook1.ps 6 PostScript
Tune-9989-EverydaySongBook1.txt 154 Plain-text file with the extracted tune(s)
Tune-9989-get.log 8817 Log file, useful mostly for debugging
Tune-99893-24CountryDances_1793_Preston.abc 163 ABC music file with the extracted tune(s)
Tune-99893-24CountryDances_1793_Preston.txt 163 Plain-text file with the extracted tune(s)
Tune-99893-get.log 3500 Log file, useful mostly for debugging
Tune-99894-get.log 3884 Log file, useful mostly for debugging
Tune-99895-get.log 3510 Log file, useful mostly for debugging
Tune-99896-get.log 5433 Log file, useful mostly for debugging
Tune-99898-get.log 4005 Log file, useful mostly for debugging
Tune-99899-MoF.abc 138 ABC music file with the extracted tune(s)
Tune-99899-MoF.ps 6 PostScript
Tune-99899-MoF.txt 138 Plain-text file with the extracted tune(s)
Tune-99899-get.log 3955 Log file, useful mostly for debugging
These files should be available for 24 hours.