Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Children/EliasHowe_MusiciansCompanionP2-1843-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7759-EliasHowe_MusiciansCompanionP2-1843-V2.ps) >>/Users/jc/w/tmp/Tune-7759-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Children/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-7759-EliasHowe_MusiciansCompanionP2-1843-V2.abc 179 ABC music file with the extracted tune(s)
Tune-7759-EliasHowe_MusiciansCompanionP2-1843-V2.ps 6 PostScript
Tune-7759-EliasHowe_MusiciansCompanionP2-1843-V2.txt 179 Plain-text file with the extracted tune(s)
Tune-7759-get.log 10071 Log file, useful mostly for debugging
Tune-77591-get.log 9021 Log file, useful mostly for debugging
Tune-77592-get.log 3150 Log file, useful mostly for debugging
Tune-77595-get.log 4739 Log file, useful mostly for debugging
Tune-77597-get.log 6990 Log file, useful mostly for debugging
Tune-77598-get.log 3564 Log file, useful mostly for debugging
These files should be available for 24 hours.