If you have an iPad, I recommend downloading the free Sting 25 app. Sting is celebrating 25 years as a solo artist. Among the cool things in the app are clips from his 60th birthday concert, from early October, in which he teamed with other artists. On “Consider Me Gone,” we’re treated to Sting with Branford Marsalis and Herbie Hancock. The man on the bass for that evening was another contemporary jazz legend, Christian McBride.