Susie is one big bunny! She has to be to heft this instrument. I’m a little worried about the bird though–her hearing can’t be too good because sousaphones are loud!
The sousaphone is a brass instrument, related to the tuba. It’s mostly used in marching band Designed so that it fits around the body of the musician and is supported by the left shoulder, the sousaphone may be readily played while being carried. The instrument is named after American bandmaster and composer John Philip Sousa, who popularized its use in his band.
Now you know!