Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1778/ViolaRuth_PWFT.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9933-ViolaRuth_PWFT.ps) >>/Users/jc/w/tmp/Tune-9933-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1778/ViolaRuth_PWFT.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_99333.log 140140 Log file, useful mostly for debugging
Coll_99336.log 415012 Log file, useful mostly for debugging
List99336.log 162 Log file, useful mostly for debugging
Tune-9933-ViolaRuth_PWFT.abc 151 ABC music file with the extracted tune(s)
Tune-9933-ViolaRuth_PWFT.ps 6 PostScript
Tune-9933-ViolaRuth_PWFT.txt 151 Plain-text file with the extracted tune(s)
Tune-9933-get.log 16723 Log file, useful mostly for debugging
Tune-99332-get.log 4402 Log file, useful mostly for debugging
Tune-99333-get.log 8886 Log file, useful mostly for debugging
Tune-99335-get.log 8287 Log file, useful mostly for debugging
Tune-99338-get.log 4741 Log file, useful mostly for debugging
Tune-99339-get.log 3648 Log file, useful mostly for debugging
These files should be available for 24 hours.