pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3057-Pilgrim.ps) >>/Users/jc/w/tmp/Tune-3057-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/Pilgrim.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-3057-Pilgrim.abc 427 ABC music file with the extracted tune(s)
Tune-3057-Pilgrim.ps 33880 PostScript
Tune-3057-Pilgrim.txt 427 Plain-text file with the extracted tune(s)
Tune-3057-get.log 9596 Log file, useful mostly for debugging
Tune-3057-love_for_sale.abc 1657 ABC music file with the extracted tune(s)
Tune-3057-love_for_sale.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-3057-love_for_sale.ps 43851 PostScript
Tune-3057-love_for_sale.txt 1657 Plain-text file with the extracted tune(s)
Tune-30576-get.log 3326 Log file, useful mostly for debugging
Tune-30578-get.log 72139 Log file, useful mostly for debugging
Tune-30579-get.log 5373 Log file, useful mostly for debugging
These files should be available for 24 hours.