Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/10thBook/EliasHowe_MusiciansCompanionP2-1843-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3700-EliasHowe_MusiciansCompanionP2-1843-V2.ps) >>/Users/jc/w/tmp/Tune-3700-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/10thBook/EliasHowe_MusiciansCompanionP2-1843-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
Tune-3700-EliasHowe_MusiciansCompanionP2-1843-V2.abc 179 ABC music file with the extracted tune(s)
Tune-3700-EliasHowe_MusiciansCompanionP2-1843-V2.ps 6 PostScript
Tune-3700-EliasHowe_MusiciansCompanionP2-1843-V2.txt 179 Plain-text file with the extracted tune(s)
Tune-3700-get.log 4678 Log file, useful mostly for debugging
Tune-37000-get.log 5075 Log file, useful mostly for debugging
Tune-37001-get.log 4444 Log file, useful mostly for debugging
Tune-37003-get.log 5643 Log file, useful mostly for debugging
Tune-37004-get.log 11522 Log file, useful mostly for debugging
Tune-37005-get.log 12860 Log file, useful mostly for debugging
Tune-37008-get.log 9222 Log file, useful mostly for debugging
Tune-37009-get.log 5941 Log file, useful mostly for debugging
These files should be available for 24 hours.