Highest greetings from the northeast side of Detroit, where I’m visiting with my daughter Sunny and granddaughter Beyonce and waiting right now to schedule a required foot operation that promises to restore much of my personal mobility that’s been shackled for most of the present year by a diabetic wound on my left foot that has refused to heal. My several doctors say that portions of infected bones in my foot—sadly including my small toe—must be removed so that the flesh may heal, and then I’ll be off my feet for another month of recovery time. I’ve had to cancel all my potential performance work and my entire trip to Chicago,…