Abstract Thursday - Rhythm

My English friend came over for coffee and cake this morning. It was nice to catch up as we haven't seen each other much lately. 
Ingeborg's theme for Abstract Thursday of Rhythm was, well, challenging.
This is an abstract version of Hubby's Didjeridoo which can produce some rhythmic sounds - for those who can get a sound out of it. I can't but hubby can even though not rhythmic ones.