Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Tweed1/EliasHowe_MusiciansCompanionP3-1844-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6378-EliasHowe_MusiciansCompanionP3-1844-V2.ps) >>/Users/jc/w/tmp/Tune-6378-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Tweed1/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
Coll_63786.log 633412 Log file, useful mostly for debugging
Coll_63787.log 157117 Log file, useful mostly for debugging
Tune-6378-EliasHowe_MusiciansCompanionP3-1844-V2.abc 177 ABC music file with the extracted tune(s)
Tune-6378-EliasHowe_MusiciansCompanionP3-1844-V2.ps 6 PostScript
Tune-6378-EliasHowe_MusiciansCompanionP3-1844-V2.txt 177 Plain-text file with the extracted tune(s)
Tune-6378-get.log 4666 Log file, useful mostly for debugging
Tune-63780-get.log 4469 Log file, useful mostly for debugging
Tune-63781-get.log 1283 Log file, useful mostly for debugging
Tune-63783-get.log 3404 Log file, useful mostly for debugging
Tune-63786-get.log 3490 Log file, useful mostly for debugging
Tune-63787-get.log 8880 Log file, useful mostly for debugging
Tune-63789-get.log 5615 Log file, useful mostly for debugging
These files should be available for 24 hours.