pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4821-BrondumsHopsa.ps) >>/Users/jc/w/tmp/Tune-4821-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Denmark/BrondumsHopsa.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_4821.log 370035 Log file, useful mostly for debugging
Coll_48214.log 774675 Log file, useful mostly for debugging
Coll_48216.log 282926 Log file, useful mostly for debugging
Tune-4821-BrondumsHopsa.abc 490 ABC music file with the extracted tune(s)
Tune-4821-BrondumsHopsa.ps 33875 PostScript
Tune-4821-BrondumsHopsa.txt 490 Plain-text file with the extracted tune(s)
Tune-4821-get.log 4516 Log file, useful mostly for debugging
Tune-48211-get.log 5488 Log file, useful mostly for debugging
Tune-48212-get.log 4591 Log file, useful mostly for debugging
Tune-48213-Kerr_MM4-V2.abc 188311 ABC music file with the extracted tune(s)
Tune-48213-Kerr_MM4-V2.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-48213-Kerr_MM4-V2.ps 2087525 PostScript
Tune-48213-Kerr_MM4-V2.txt 188311 Plain-text file with the extracted tune(s)
Tune-48213-get.log 250561 Log file, useful mostly for debugging
Tune-48214-get.log 5551 Log file, useful mostly for debugging
Tune-48215-get.log 5935 Log file, useful mostly for debugging
Tune-48217-get.log 4534 Log file, useful mostly for debugging
Tune-48219-get.log 6893 Log file, useful mostly for debugging
These files should be available for 24 hours.