notes in text

[address@hidden]

I'm looking for a way to include some free standing notes in a line of text.  
Specifically, I want a pair of beamed 16th, a '=' sign, and then three beamed 
16th notes, indicating that two 16ths equal three 16ths.  I'd also like to use 
it in a \tempo marking.  I searched nabble but did not find what I was after.  
Can someone point me in the right direction?

Thanks,

David