pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-18033-10854_TRIP_TO_DUBLIN.ps) >>/Users/jc/w/tmp/Tune-18033-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Kohlers/10854_TRIP_TO_DUBLIN.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_18033.log 266066 Log file, useful mostly for debugging
Tune-18033-10854_TRIP_TO_DUBLIN.abc 530 ABC music file with the extracted tune(s)
Tune-18033-10854_TRIP_TO_DUBLIN.ps 35633 PostScript
Tune-18033-10854_TRIP_TO_DUBLIN.txt 530 Plain-text file with the extracted tune(s)
Tune-18033-get.log 4744 Log file, useful mostly for debugging
These files should be available for 24 hours.