Slow hand

I was wrong in my first, fast potted biography of Alan "Wavey" Davey, Controller Radio 3, now reporting to old DCMS chum Jim Purnell as Director of Radio and Education and Arts and Music and Chidren's and Religion and Recipes. I said he wasn't a singer or a player.

Now, it seems he boasts an semi-acoustic guitar and amplifier. I'm not familiar with the electronic device on a stand (to the right). Does it monitor an oxygen supply, or is it a variant of the vocoder ?

'Cat hairs in my guitar' Wesley refuses to move out of my guitar case. pic.twitter.com/5mD1GgxjaX

— Alan Davey (@armslengthal) May 13, 2017