Mixing drummode and notes

[Paul Scott]

Is it possible for drummode and notes to occupy the same staff 
in a score?  Like a single percussion line where the player moves 
between mallet instruments and various drums, etc. 

Here is an example of what I have accomplished so far.  I don't seem to 
be able to really invoke drummode since the sn and bd notes are not on 
the default lines.

TIA for any help,

Paul Scott