Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/GftF/endo.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3643-endo.ps) >>/Users/jc/w/tmp/Tune-3643-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/GftF/endo.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_36433.log 976 Log file, useful mostly for debugging
Tune-3643-endo.abc 141 ABC music file with the extracted tune(s)
Tune-3643-endo.ps 6 PostScript
Tune-3643-endo.txt 141 Plain-text file with the extracted tune(s)
Tune-3643-get.log 5314 Log file, useful mostly for debugging
Tune-36430-get.log 4091 Log file, useful mostly for debugging
Tune-36431-get.log 1375 Log file, useful mostly for debugging
Tune-36433-get.log 3198 Log file, useful mostly for debugging
Tune-36434-KR18_B.abc 1719 ABC music file with the extracted tune(s)
Tune-36434-KR18_B.pdf 42319 Portable Data Format
Tune-36434-KR18_B.ps 47913 PostScript
Tune-36434-KR18_B.txt 1719 Plain-text file with the extracted tune(s)
Tune-36434-get.log 5064 Log file, useful mostly for debugging
Tune-36435-get.log 1386 Log file, useful mostly for debugging
Tune-36436-get.log 7357 Log file, useful mostly for debugging
Tune-36437-get.log 10379 Log file, useful mostly for debugging
Tune-36439-get.log 1386 Log file, useful mostly for debugging
These files should be available for 24 hours.