Thank you Helge Hafting, Janek Warchol, Federico Bruni for helping me to use terminal commands in ubuntu.
I downloaded the right file - dir shows it.Now I copied the error - see below:
<><><><><>
address@hidden:~$ diracl
Downloads Public Test.pdf yming.xhb~
BOOKS Dropbox rosegarden Test.ps
your-love.lyCalibre\ Library examples.desktop Templates untitled.xhb
Desktop Music Test.ly Videos
Documents Pictures Test.ly~ yming.xhb
address@hidden:~$ cd Downloads
address@hidden:~/Downloads$ dir2011_summer_camp_headcount_May24.xlsx libflashplayer.so
gsview-4.9
lilypond-2.13.61-1.linux-x86.sh
gsview-4.9.tar.gz
lilypond-2.14.0-1.linux-x86.shinstall_flash_player_10_linux.tar.gz usr
address@hidden:~/Downloads$ sh lilypond-2.14.0-linux-x86.sh
sh: Can't open
lilypond-2.14.0-linux-x86.shaddress@hidden:~/Downloads$<><><><><> end of message
QUESTION:
Do I need to
uninstall v2.12.3 lilypond? How can I do it?
Janek: arpeggio midi sound is not produced on v2.12.3 either.