Mark Ronson and Lennon jam, Winehouse on Titchmarsh - what we've learnt on Twitter (Nov 6)

It's been another busy week, and our favourite musicians have once again been sharing their thoughts in 140 characters or less on Twitter. Here's what we've learned from their posts, including Mark Ronson jamming with Sean Lennon while Yoko Ono looks on, Klaxons' Jamie Reynolds auditioning for a new rhythm section and Amy Winehouse tweeting about Alan Titchmarsh. (link)