pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-61440-21770_THE_SNOW_DRIFT_VALSES.ps) >>/Users/jc/w/tmp/Tune-61440-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/21770_THE_SNOW_DRIFT_VALSES.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-61440-21770_THE_SNOW_DRIFT_VALSES.abc 419 ABC music file with the extracted tune(s)
Tune-61440-21770_THE_SNOW_DRIFT_VALSES.ps 30664 PostScript
Tune-61440-21770_THE_SNOW_DRIFT_VALSES.txt 419 Plain-text file with the extracted tune(s)
Tune-61440-get.log 4920 Log file, useful mostly for debugging
These files should be available for 24 hours.