Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/10thBook/EliasHowe_MusiciansCompanionP1-1842-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2548-EliasHowe_MusiciansCompanionP1-1842-V1.ps) >>/Users/jc/w/tmp/Tune-2548-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/10thBook/EliasHowe_MusiciansCompanionP1-1842-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_25489.log 427612 Log file, useful mostly for debugging
Tune-2548-EliasHowe_MusiciansCompanionP1-1842-V1.abc 179 ABC music file with the extracted tune(s)
Tune-2548-EliasHowe_MusiciansCompanionP1-1842-V1.ps 6 PostScript
Tune-2548-EliasHowe_MusiciansCompanionP1-1842-V1.txt 179 Plain-text file with the extracted tune(s)
Tune-2548-get.log 4678 Log file, useful mostly for debugging
Tune-25480-get.log 3356 Log file, useful mostly for debugging
Tune-25481-get.log 1424 Log file, useful mostly for debugging
Tune-25483-get.log 4094 Log file, useful mostly for debugging
Tune-25484-get.log 3614 Log file, useful mostly for debugging
Tune-25485-get.log 4417 Log file, useful mostly for debugging
Tune-25487-CSRHW-abc2.abc 148 ABC music file with the extracted tune(s)
Tune-25487-CSRHW-abc2.pdf 2217 Portable Data Format
Tune-25487-CSRHW-abc2.ps 6 PostScript
Tune-25487-CSRHW-abc2.txt 148 Plain-text file with the extracted tune(s)
Tune-25487-get.log 8913 Log file, useful mostly for debugging
These files should be available for 24 hours.