pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7269-Ten_Penny_Bit.ps) >>/Users/jc/w/tmp/Tune-7269-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Ten_Penny_Bit.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_72691.log 312430 Log file, useful mostly for debugging
Coll_72694.log 305405 Log file, useful mostly for debugging
Coll_72698.log 598168 Log file, useful mostly for debugging
Tune-7269-Ten_Penny_Bit.abc 671 ABC music file with the extracted tune(s)
Tune-7269-Ten_Penny_Bit.ps 34572 PostScript
Tune-7269-Ten_Penny_Bit.txt 671 Plain-text file with the extracted tune(s)
Tune-7269-get.log 4512 Log file, useful mostly for debugging
Tune-72693-get.log 5926 Log file, useful mostly for debugging
These files should be available for 24 hours.