Companionship wanted: Marcus's opera and a cup of tea

I'm writing for my neighbor Marcus, who's 79. Marcus lives alone in Melbourne, and lost a spouse of many years last year. The nearest family lives a long flight away. Marcus loves opera, and would enjoy someone to chat with. An hour a week, perhaps on Thursday afternoon, would mean the world. We can also arrange a phone call if you can't visit in person. All visitors will be introduced by me and I'll be there at the first meeting. I'll share references and, if you'd like, a short orientation from the local befriending charity. No special skills are needed - just kindness and patience. Please ask me anything in the questions section. I'll answer honestly and quickly.