[Trombone-l] Alto, tenor, bass, BBb contrabass Quartets

[Ken Leginchin]

I play tuba in a local orchestra.  I also play contrabass BBb trombone.

I would like to fill 20 to 30 minutes of pre concert time with my trombone 
section,   With alto, tenor, bass, and contrabass BBb trombone, showing the 
differences to the noephytes.

Any ideas of whats out there?  On a scale of 1 to 5, we are all around a 4.

Thanks for your help.

Ken Leginchin