Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/sets/AMHSI_abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2679-AMHSI_abc2.ps) >>/Users/jc/w/tmp/Tune-2679-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/sets/AMHSI_abc2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_26799.log 843 Log file, useful mostly for debugging
Tune-2679-AMHSI_abc2.abc 147 ABC music file with the extracted tune(s)
Tune-2679-AMHSI_abc2.ps 6 PostScript
Tune-2679-AMHSI_abc2.txt 147 Plain-text file with the extracted tune(s)
Tune-2679-get.log 14305 Log file, useful mostly for debugging
Tune-26790-get.log 4150 Log file, useful mostly for debugging
Tune-26792-get.log 4954 Log file, useful mostly for debugging
Tune-26795-get.log 4092 Log file, useful mostly for debugging
Tune-26798-Gow4.abc 153 ABC music file with the extracted tune(s)
Tune-26798-Gow4.ps 6 PostScript
Tune-26798-Gow4.txt 153 Plain-text file with the extracted tune(s)
Tune-26798-JohnJohnson_ChoiceCollectionVol8-VMP.abc 174 ABC music file with the extracted tune(s)
Tune-26798-JohnJohnson_ChoiceCollectionVol8-VMP.txt 174 Plain-text file with the extracted tune(s)
Tune-26798-get.log 7718 Log file, useful mostly for debugging
These files should be available for 24 hours.