pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9502-Annie_ONeill-G-16-2.ps) >>/Users/jc/w/tmp/Tune-9502-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ONeills/reel/Annie_ONeill-G-16-2.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-9502-Annie_ONeill-G-16-2.abc 408 ABC music file with the extracted tune(s)
Tune-9502-Annie_ONeill-G-16-2.ps 34935 PostScript
Tune-9502-Annie_ONeill-G-16-2.txt 408 Plain-text file with the extracted tune(s)
Tune-9502-get.log 4766 Log file, useful mostly for debugging
Tune-95021-Crossroads_Dance-G-32-2.abc 534 ABC music file with the extracted tune(s)
Tune-95021-Crossroads_Dance-G-32-2.pdf 16095 Portable Data Format
Tune-95021-Crossroads_Dance-G-32-2.ps 35240 PostScript
Tune-95021-Crossroads_Dance-G-32-2.txt 534 Plain-text file with the extracted tune(s)
Tune-95021-get.log 6421 Log file, useful mostly for debugging
Tune-95023-get.log 3268 Log file, useful mostly for debugging
Tune-95029-Humphreys_Hornpipe-A-32-4.abc 533 ABC music file with the extracted tune(s)
Tune-95029-Humphreys_Hornpipe-A-32-4.pdf 18065 Portable Data Format
Tune-95029-Humphreys_Hornpipe-A-32-4.ps 37205 PostScript
Tune-95029-Humphreys_Hornpipe-A-32-4.txt 533 Plain-text file with the extracted tune(s)
Tune-95029-get.log 5808 Log file, useful mostly for debugging
These files should be available for 24 hours.