pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-77111-32732_PRINCESS_BEATRICE_WALTZ_2.ps) >>/Users/jc/w/tmp/Tune-77111-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/32732_PRINCESS_BEATRICE_WALTZ_2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_77111.log 831 Log file, useful mostly for debugging
Tune-77111-32732_PRINCESS_BEATRICE_WALTZ_2.abc 896 ABC music file with the extracted tune(s)
Tune-77111-32732_PRINCESS_BEATRICE_WALTZ_2.ps 39355 PostScript
Tune-77111-32732_PRINCESS_BEATRICE_WALTZ_2.txt 896 Plain-text file with the extracted tune(s)
Tune-77111-get.log 5022 Log file, useful mostly for debugging
These files should be available for 24 hours.