pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8896-Katies_Rambles-Dm-32-2.ps) >>/Users/jc/w/tmp/Tune-8896-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/jig/Katies_Rambles-Dm-32-2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_88962.log 620645 Log file, useful mostly for debugging
Coll_88966.log 308215 Log file, useful mostly for debugging
Coll_88969.log 311025 Log file, useful mostly for debugging
Tune-8896-Katies_Rambles-Dm-32-2.abc 561 ABC music file with the extracted tune(s)
Tune-8896-Katies_Rambles-Dm-32-2.ps 34609 PostScript
Tune-8896-Katies_Rambles-Dm-32-2.txt 561 Plain-text file with the extracted tune(s)
Tune-8896-get.log 5279 Log file, useful mostly for debugging
Tune-88960-get.log 2795 Log file, useful mostly for debugging
Tune-88968-get.log 3980 Log file, useful mostly for debugging
These files should be available for 24 hours.