Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MacNab01/EliasHowe_MusiciansCompanionP3-1844-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8053-EliasHowe_MusiciansCompanionP3-1844-V2.ps) >>/Users/jc/w/tmp/Tune-8053-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MacNab01/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_80538.log 157168 Log file, useful mostly for debugging
Tune-8053-EliasHowe_MusiciansCompanionP3-1844-V2.abc 179 ABC music file with the extracted tune(s)
Tune-8053-EliasHowe_MusiciansCompanionP3-1844-V2.ps 6 PostScript
Tune-8053-EliasHowe_MusiciansCompanionP3-1844-V2.txt 179 Plain-text file with the extracted tune(s)
Tune-8053-get.log 8576 Log file, useful mostly for debugging
Tune-80532-get.log 10887 Log file, useful mostly for debugging
Tune-80534-get.log 7109 Log file, useful mostly for debugging
Tune-80536-get.log 3224 Log file, useful mostly for debugging
Tune-80539-CharlesZeuner_TremontQuadrilles2.abc 176 ABC music file with the extracted tune(s)
Tune-80539-CharlesZeuner_TremontQuadrilles2.pdf 2217 Portable Data Format
Tune-80539-CharlesZeuner_TremontQuadrilles2.ps 6 PostScript
Tune-80539-CharlesZeuner_TremontQuadrilles2.txt 176 Plain-text file with the extracted tune(s)
Tune-80539-get.log 5566 Log file, useful mostly for debugging
These files should be available for 24 hours.