Scouts love this "repeat after me" song! Princess Pat lives in a tree and sails across the sea in a mysterious boat. Is it a rick-a-bamboo? a rig-a-bamboo? or a rig-bamboo? Different versions of the lyrics call it different things. Your piece calls it a rig-a bamboo to sound like a "rig of bamboo", which actually makes some sense.Anyhow in your arrangement as a repeat after me song, the left hand repeats what the right hand plays note for note.