pscmd="(jcabc2ps /Users/jc/w/tmp/Tune-2565-ACMV.abc -F fmt/pdf_70.fmt +s 0.70 +maxs 2000 )>/Users/jc/w/tmp/Tune-2565-ACMV.ps 2>>/Users/jc/w/tmp/Tune-2565-get.log" returned status 256.
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2565-ACMV.ps) >>/Users/jc/w/tmp/Tune-2565-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ACMV/ACMV.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_25650.log 264662 Log file, useful mostly for debugging
Form_25650.log 864 Log file, useful mostly for debugging
Form_25651.log 834 Log file, useful mostly for debugging
Form_25657.log 1912 Log file, useful mostly for debugging
Form_25659.log 990 Log file, useful mostly for debugging
List25650.log 162 Log file, useful mostly for debugging
List25654.log 162 Log file, useful mostly for debugging
Tune-2565-ACMV.abc 84486 ABC music file with the extracted tune(s)
Tune-2565-ACMV.ps 31361 PostScript
Tune-2565-ACMV.txt 84486 Plain-text file with the extracted tune(s)
Tune-2565-get.log 62493 Log file, useful mostly for debugging
Tune-25651-get.log 6005 Log file, useful mostly for debugging
Tune-25652-get.log 5524 Log file, useful mostly for debugging
These files should be available for 24 hours.