Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/HUTB2/George_Meikle.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6432-George_Meikle.ps) >>/Users/jc/w/tmp/Tune-6432-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/HUTB2/George_Meikle.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-6432-George_Meikle.abc 151 ABC music file with the extracted tune(s)
Tune-6432-George_Meikle.ps 6 PostScript
Tune-6432-George_Meikle.txt 151 Plain-text file with the extracted tune(s)
Tune-6432-get.log 8907 Log file, useful mostly for debugging
Tune-6432-newpage.abc 144 ABC music file with the extracted tune(s)
Tune-6432-newpage.pdf 2217 Portable Data Format
Tune-6432-newpage.ps 6 PostScript
Tune-6432-newpage.txt 144 Plain-text file with the extracted tune(s)
Tune-64322-get.log 1316 Log file, useful mostly for debugging
Tune-64327-get.log 6394 Log file, useful mostly for debugging
Tune-64329-IaST-abc2.abc 150 ABC music file with the extracted tune(s)
Tune-64329-IaST-abc2.ps 6 PostScript
Tune-64329-IaST-abc2.txt 150 Plain-text file with the extracted tune(s)
Tune-64329-get.log 7026 Log file, useful mostly for debugging
These files should be available for 24 hours.