pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-94957-Rothesay_Rant2-FBb-64-4.ps) >>/Users/jc/w/tmp/Tune-94957-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/session/jig/Rothesay_Rant2-FBb-64-4.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_94957.log 264661 Log file, useful mostly for debugging
Tune-94957-Rothesay_Rant2-FBb-64-4.abc 837 ABC music file with the extracted tune(s)
Tune-94957-Rothesay_Rant2-FBb-64-4.ps 36459 PostScript
Tune-94957-Rothesay_Rant2-FBb-64-4.txt 837 Plain-text file with the extracted tune(s)
Tune-94957-get.log 12004 Log file, useful mostly for debugging
These files should be available for 24 hours.