pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-30260-21792_EDINBRO_MARCH.ps) >>/Users/jc/w/tmp/Tune-30260-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/21792_EDINBRO_MARCH.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_30260.log 567259 Log file, useful mostly for debugging
Tune-30260-21792_EDINBRO_MARCH.abc 715 ABC music file with the extracted tune(s)
Tune-30260-21792_EDINBRO_MARCH.ps 38046 PostScript
Tune-30260-21792_EDINBRO_MARCH.txt 715 Plain-text file with the extracted tune(s)
Tune-30260-get.log 4750 Log file, useful mostly for debugging
These files should be available for 24 hours.