Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NewColl44Cot/EliasHowe_MusiciansCompanionP3-1844-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7059-EliasHowe_MusiciansCompanionP3-1844-V2.ps) >>/Users/jc/w/tmp/Tune-7059-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NewColl44Cot/EliasHowe_MusiciansCompanionP3-1844-V2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_70595.log 1423 Log file, useful mostly for debugging
Form_70599.log 1172 Log file, useful mostly for debugging
Tune-7059-EliasHowe_MusiciansCompanionP3-1844-V2.abc 183 ABC music file with the extracted tune(s)
Tune-7059-EliasHowe_MusiciansCompanionP3-1844-V2.ps 6 PostScript
Tune-7059-EliasHowe_MusiciansCompanionP3-1844-V2.txt 183 Plain-text file with the extracted tune(s)
Tune-7059-get.log 9858 Log file, useful mostly for debugging
Tune-70591-get.log 5174 Log file, useful mostly for debugging
Tune-70592-get.log 4831 Log file, useful mostly for debugging
Tune-70594-get.log 5465 Log file, useful mostly for debugging
Tune-70595-get.log 15395 Log file, useful mostly for debugging
These files should be available for 24 hours.