Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/air/JohnTreat_GftF2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3385-JohnTreat_GftF2.ps) >>/Users/jc/w/tmp/Tune-3385-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/air/JohnTreat_GftF2.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-3385-JohnTreat_GftF2.abc 151 ABC music file with the extracted tune(s)
Tune-3385-JohnTreat_GftF2.ps 6 PostScript
Tune-3385-JohnTreat_GftF2.txt 151 Plain-text file with the extracted tune(s)
Tune-3385-get.log 4159 Log file, useful mostly for debugging
Tune-33850-ERM-V2.abc 141 ABC music file with the extracted tune(s)
Tune-33850-ERM-V2.ps 6 PostScript
Tune-33850-ERM-V2.txt 141 Plain-text file with the extracted tune(s)
Tune-33850-get.log 4016 Log file, useful mostly for debugging
Tune-33854-get.log 3200 Log file, useful mostly for debugging
Tune-33855-get.log 5544 Log file, useful mostly for debugging
Tune-33857-get.log 234010 Log file, useful mostly for debugging
Tune-33858-get.log 5433 Log file, useful mostly for debugging
Tune-33859-get.log 5377 Log file, useful mostly for debugging
These files should be available for 24 hours.