Poly meter HowTo?

[Steve Shorter]

Howdy!


        I need to do multiple meters in different clefts 
simultaneosly like this


                 3       | 4       |         |
  treble clef   ---      |---      |         |
                 8       | 8       |         |


                 2       | 5       | 4       |
   bass cleff   ---      |---      |---      |
                 8       | 8       | 8       |


        I tried various "context" changes but
couldn't get different meters in different clefs at
the same time.

        How is this done on lilypond? Is there an
example somehwere I can look at?

        version 2.1.30 on Linux debian.

        thanx - steve