pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1048-10151_Morellas_Lesson.ps) >>/Users/jc/w/tmp/Tune-1048-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/10151_Morellas_Lesson.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_10484.log 393920 Log file, useful mostly for debugging
Coll_10489.log 452934 Log file, useful mostly for debugging
Tune-1048-10151_Morellas_Lesson.abc 1016 ABC music file with the extracted tune(s)
Tune-1048-10151_Morellas_Lesson.ps 40694 PostScript
Tune-1048-10151_Morellas_Lesson.txt 1016 Plain-text file with the extracted tune(s)
Tune-1048-get.log 4990 Log file, useful mostly for debugging
Tune-10482-get.log 3312 Log file, useful mostly for debugging
Tune-10484-get.log 9344 Log file, useful mostly for debugging
These files should be available for 24 hours.