Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book06/EliasHowe_MusiciansCompanionP3-1844-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5098-EliasHowe_MusiciansCompanionP3-1844-V1.ps) >>/Users/jc/w/tmp/Tune-5098-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book06/EliasHowe_MusiciansCompanionP3-1844-V1.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_50986.log 167516 Log file, useful mostly for debugging
Tune-5098-EliasHowe_MusiciansCompanionP3-1844-V1.abc 177 ABC music file with the extracted tune(s)
Tune-5098-EliasHowe_MusiciansCompanionP3-1844-V1.ps 6 PostScript
Tune-5098-EliasHowe_MusiciansCompanionP3-1844-V1.txt 177 Plain-text file with the extracted tune(s)
Tune-5098-get.log 4666 Log file, useful mostly for debugging
Tune-50981-get.log 1350 Log file, useful mostly for debugging
Tune-50983-get.log 6974 Log file, useful mostly for debugging
Tune-50984-get.log 4492 Log file, useful mostly for debugging
Tune-50987-get.log 9569 Log file, useful mostly for debugging
Tune-50987-slurs.abc 149 ABC music file with the extracted tune(s)
Tune-50987-slurs.ps 6 PostScript
Tune-50987-slurs.txt 149 Plain-text file with the extracted tune(s)
Tune-50988-get.log 3300 Log file, useful mostly for debugging
These files should be available for 24 hours.