Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/CentColl/WilliamShepherdsCollections.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4900-WilliamShepherdsCollections.ps) >>/Users/jc/w/tmp/Tune-4900-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CentColl/WilliamShepherdsCollections.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_49000.log 168166 Log file, useful mostly for debugging
Tune-4900-WilliamShepherdsCollections.abc 168 ABC music file with the extracted tune(s)
Tune-4900-WilliamShepherdsCollections.ps 6 PostScript
Tune-4900-WilliamShepherdsCollections.txt 168 Plain-text file with the extracted tune(s)
Tune-4900-get.log 51561 Log file, useful mostly for debugging
Tune-49000-get.log 22587 Log file, useful mostly for debugging
Tune-49001-get.log 5182 Log file, useful mostly for debugging
Tune-49002-get.log 12719 Log file, useful mostly for debugging
Tune-49003-get.log 9591 Log file, useful mostly for debugging
Tune-49004-get.log 8880 Log file, useful mostly for debugging
Tune-49006-get.log 5297 Log file, useful mostly for debugging
Tune-49007-get.log 4707 Log file, useful mostly for debugging
Tune-49009-CTftF.abc 142 ABC music file with the extracted tune(s)
Tune-49009-CTftF.ps 6 PostScript
Tune-49009-CTftF.txt 142 Plain-text file with the extracted tune(s)
Tune-49009-get.log 7991 Log file, useful mostly for debugging
These files should be available for 24 hours.