Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/12Minuets12Dances/AMHSI-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5875-AMHSI-abc2.ps) >>/Users/jc/w/tmp/Tune-5875-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/12Minuets12Dances/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
Coll_58750.log 270281 Log file, useful mostly for debugging
Coll_58757.log 264661 Log file, useful mostly for debugging
Coll_58759.log 133775 Log file, useful mostly for debugging
Form_58752.log 851 Log file, useful mostly for debugging
Form_58753.log 832 Log file, useful mostly for debugging
Form_58759.log 1841 Log file, useful mostly for debugging
Tune-5875-AMHSI-abc2.abc 160 ABC music file with the extracted tune(s)
Tune-5875-AMHSI-abc2.ps 6 PostScript
Tune-5875-AMHSI-abc2.txt 160 Plain-text file with the extracted tune(s)
Tune-5875-get.log 9563 Log file, useful mostly for debugging
These files should be available for 24 hours.