Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1826/JohnTreat_GftF1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-75236-JohnTreat_GftF1.ps) >>/Users/jc/w/tmp/Tune-75236-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1826/JohnTreat_GftF1.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-75236-097_Round_Come_Ye_Schoolmates-001.svg 7450 Scalable Vector Graphics format
Tune-75236-097_Round_Come_Ye_Schoolmates.abc 643 ABC music file with the extracted tune(s)
Tune-75236-097_Round_Come_Ye_Schoolmates.txt 643 Plain-text file with the extracted tune(s)
Tune-75236-JohnTreat_GftF1.abc 152 ABC music file with the extracted tune(s)
Tune-75236-JohnTreat_GftF1.ps 6 PostScript
Tune-75236-JohnTreat_GftF1.txt 152 Plain-text file with the extracted tune(s)
Tune-75236-get.log 8785 Log file, useful mostly for debugging
These files should be available for 24 hours.