Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1754/JohnJohnson_ChoiceCollectionVol8-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4210-JohnJohnson_ChoiceCollectionVol8-V1.ps) >>/Users/jc/w/tmp/Tune-4210-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1754/JohnJohnson_ChoiceCollectionVol8-V1.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_42109.log 25445 Log file, useful mostly for debugging
Tune-4210-JohnJohnson_ChoiceCollectionVol8-V1.abc 172 ABC music file with the extracted tune(s)
Tune-4210-JohnJohnson_ChoiceCollectionVol8-V1.ps 6 PostScript
Tune-4210-JohnJohnson_ChoiceCollectionVol8-V1.txt 172 Plain-text file with the extracted tune(s)
Tune-4210-get.log 4591 Log file, useful mostly for debugging
Tune-42100-get.log 4056 Log file, useful mostly for debugging
Tune-42101-get.log 9584 Log file, useful mostly for debugging
Tune-42102-get.log 3192 Log file, useful mostly for debugging
Tune-42104-get.log 11491 Log file, useful mostly for debugging
Tune-42107-get.log 4702 Log file, useful mostly for debugging
Tune-42108-get.log 10261 Log file, useful mostly for debugging
Tune-42109-JohnWalsh.abc 146 ABC music file with the extracted tune(s)
Tune-42109-JohnWalsh.ps 6 PostScript
Tune-42109-JohnWalsh.txt 146 Plain-text file with the extracted tune(s)
Tune-42109-get.log 7822 Log file, useful mostly for debugging
These files should be available for 24 hours.