pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17211-21043_Manilla_Sett_tune_3.ps) >>/Users/jc/w/tmp/Tune-17211-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/21043_Manilla_Sett_tune_3.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-17211-21043_Manilla_Sett_tune_3.abc 1079 ABC music file with the extracted tune(s)
Tune-17211-21043_Manilla_Sett_tune_3.ps 35679 PostScript
Tune-17211-21043_Manilla_Sett_tune_3.txt 1079 Plain-text file with the extracted tune(s)
Tune-17211-get.log 5026 Log file, useful mostly for debugging
These files should be available for 24 hours.