Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/jig/ViolaRuth_PWFT.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7150-ViolaRuth_PWFT.ps) >>/Users/jc/w/tmp/Tune-7150-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/jig/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_7150.log 469609 Log file, useful mostly for debugging
Coll_71501.log 462610 Log file, useful mostly for debugging
Coll_71503.log 791615 Log file, useful mostly for debugging
Coll_71504.log 1309807 Log file, useful mostly for debugging
Coll_71505.log 249810 Log file, useful mostly for debugging
Tune-7150-ViolaRuth_PWFT.abc 150 ABC music file with the extracted tune(s)
Tune-7150-ViolaRuth_PWFT.ps 6 PostScript
Tune-7150-ViolaRuth_PWFT.txt 150 Plain-text file with the extracted tune(s)
Tune-7150-get.log 4140 Log file, useful mostly for debugging
Tune-71502-get.log 4563 Log file, useful mostly for debugging
Tune-71506-get.log 3526 Log file, useful mostly for debugging
Tune-71507-get.log 5395 Log file, useful mostly for debugging
Tune-71509-get.log 5990 Log file, useful mostly for debugging
These files should be available for 24 hours.