Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/was/MMM2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8997-MMM2.ps) >>/Users/jc/w/tmp/Tune-8997-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/was/MMM2.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_89974.log 17633 Log file, useful mostly for debugging
Form_8997.log 1039 Log file, useful mostly for debugging
Tune-8997-MMM2.abc 140 ABC music file with the extracted tune(s)
Tune-8997-MMM2.ps 6 PostScript
Tune-8997-MMM2.txt 140 Plain-text file with the extracted tune(s)
Tune-8997-get.log 3932 Log file, useful mostly for debugging
Tune-89976-get.log 4177 Log file, useful mostly for debugging
Tune-89977-Kerr_MM4-V1.abc 148 ABC music file with the extracted tune(s)
Tune-89977-Kerr_MM4-V1.ps 6 PostScript
Tune-89977-Kerr_MM4-V1.txt 148 Plain-text file with the extracted tune(s)
Tune-89977-get.log 4014 Log file, useful mostly for debugging
These files should be available for 24 hours.