DAW In Silverlight

i am trying to create 开发者_JS百科DAW in silverlight but i dont know how to generrate sound of piano,drum and all that instrumnets .. how to Add Music Notation and Play rythm as per Notation .... Can Anyone Please Help Me with this.....

Something like this?

http://www.grape.hu/Pluto/Pluto2.html

Here is a project that may help you to get started:

http://silversynth.codeplex.com/

Also look this:

http://directshow4sl.codeplex.com/

http://salusemediakit.codeplex.com/