Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1796/Rutherford_Compleat_Collection_V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3890-Rutherford_Compleat_Collection_V1.ps) >>/Users/jc/w/tmp/Tune-3890-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1796/Rutherford_Compleat_Collection_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
Tune-3890-Rutherford_Compleat_Collection_V1.abc 170 ABC music file with the extracted tune(s)
Tune-3890-Rutherford_Compleat_Collection_V1.ps 6 PostScript
Tune-3890-Rutherford_Compleat_Collection_V1.txt 170 Plain-text file with the extracted tune(s)
Tune-3890-get.log 15560 Log file, useful mostly for debugging
Tune-38900-get.log 1917 Log file, useful mostly for debugging
Tune-38901-get.log 5533 Log file, useful mostly for debugging
Tune-38902-get.log 5568 Log file, useful mostly for debugging
Tune-38904-EliasHowe_MusiciansCompanionP3-1844-V2.abc 175 ABC music file with the extracted tune(s)
Tune-38904-EliasHowe_MusiciansCompanionP3-1844-V2.pdf 2217 Portable Data Format
Tune-38904-EliasHowe_MusiciansCompanionP3-1844-V2.ps 6 PostScript
Tune-38904-EliasHowe_MusiciansCompanionP3-1844-V2.txt 175 Plain-text file with the extracted tune(s)
Tune-38904-get.log 5698 Log file, useful mostly for debugging
These files should be available for 24 hours.