Commands

The /tellraw command is missing. Can someone add it?

I'm trying to create an adventure map that uses the /playsound command, but I can't seem to find any list that has every sound that I'm looking for. The only sound I can get to work right now is mob.endermen.death. Every list I find online is for PC, and every sound I try from those lists doesn't work. Any links to websites or just general help as to what I should try is appreciated.

Can someone help me with this? From the Update 1.1 page, I read that it has something to do with the /replaceitem command, but I can't figure it out. How do I put these tags on items?

Can you use commands yet If not I think they should be added in the next update