pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2199-Dargason.ps) >>/Users/jc/w/tmp/Tune-2199-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Playford/Dargason.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-2199-Dargason.abc 200 ABC music file with the extracted tune(s)
Tune-2199-Dargason.ps 31991 PostScript
Tune-2199-Dargason.txt 200 Plain-text file with the extracted tune(s)
Tune-2199-get.log 4349 Log file, useful mostly for debugging
Tune-21994-LastNewRigaudonThe_PLFD1695_330.abc 404 ABC music file with the extracted tune(s)
Tune-21994-LastNewRigaudonThe_PLFD1695_330.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-21994-LastNewRigaudonThe_PLFD1695_330.ps 33958 PostScript
Tune-21994-LastNewRigaudonThe_PLFD1695_330.txt 404 Plain-text file with the extracted tune(s)
Tune-21994-get.log 5809 Log file, useful mostly for debugging
Tune-21999-all.abc 162 ABC music file with the extracted tune(s)
Tune-21999-all.ps 6 PostScript
Tune-21999-all.txt 162 Plain-text file with the extracted tune(s)
Tune-21999-get.log 4053 Log file, useful mostly for debugging
These files should be available for 24 hours.