pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-55499-Rev19000331.ps) >>/Users/jc/w/tmp/Tune-55499-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/scand/Rev19000331.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_55499.log 875835 Log file, useful mostly for debugging
Tune-55499-Rev19000331.abc 3496 ABC music file with the extracted tune(s)
Tune-55499-Rev19000331.ps 68448 PostScript
Tune-55499-Rev19000331.txt 3496 Plain-text file with the extracted tune(s)
Tune-55499-get.log 8179 Log file, useful mostly for debugging
These files should be available for 24 hours.