pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2439-20892_Lowell_Sett_tune_5.ps) >>/Users/jc/w/tmp/Tune-2439-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/20892_Lowell_Sett_tune_5.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-2439-20892_Lowell_Sett_tune_5.abc 1107 ABC music file with the extracted tune(s)
Tune-2439-20892_Lowell_Sett_tune_5.ps 38066 PostScript
Tune-2439-20892_Lowell_Sett_tune_5.txt 1107 Plain-text file with the extracted tune(s)
Tune-2439-get.log 4978 Log file, useful mostly for debugging
Tune-24390-get.log 4369 Log file, useful mostly for debugging
Tune-24394-PaulBackstrom-LfD.abc 154 ABC music file with the extracted tune(s)
Tune-24394-PaulBackstrom-LfD.ps 6 PostScript
Tune-24394-PaulBackstrom-LfD.txt 154 Plain-text file with the extracted tune(s)
Tune-24394-get.log 4136 Log file, useful mostly for debugging
Tune-24397-get.log 5431 Log file, useful mostly for debugging
These files should be available for 24 hours.