Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/CPC/MichaelDabney_12Minuets12Dances-1760-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1998-MichaelDabney_12Minuets12Dances-1760-V1.ps) >>/Users/jc/w/tmp/Tune-1998-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CPC/MichaelDabney_12Minuets12Dances-1760-V1.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_19989.log 159717 Log file, useful mostly for debugging
Find_19984.log 1471 Log file, useful mostly for debugging
Tune-1998-MichaelDabney_12Minuets12Dances-1760-V1.abc 175 ABC music file with the extracted tune(s)
Tune-1998-MichaelDabney_12Minuets12Dances-1760-V1.ps 6 PostScript
Tune-1998-MichaelDabney_12Minuets12Dances-1760-V1.txt 175 Plain-text file with the extracted tune(s)
Tune-1998-get.log 12080 Log file, useful mostly for debugging
Tune-19980-get.log 4615 Log file, useful mostly for debugging
Tune-19981-get.log 11382 Log file, useful mostly for debugging
Tune-19982-get.log 9248 Log file, useful mostly for debugging
Tune-19984-get.log 3504 Log file, useful mostly for debugging
Tune-19985-get.log 8183 Log file, useful mostly for debugging
Tune-19986-get.log 4478 Log file, useful mostly for debugging
Tune-19987-get.log 3602 Log file, useful mostly for debugging
Tune-19988-get.log 7848 Log file, useful mostly for debugging
Tune-19989-get.log 8404 Log file, useful mostly for debugging
These files should be available for 24 hours.