Geoff's new one is out and is beautiful. It's a cover of Till Then, first recorded by the Mills Brothers in 1944, which makes it as old as me. :) I think his cover of Blackbird is a good one for seeing more of his range but yes this is very fine. Hope you feel better soon. Stay strong. :)
High and Dry is another of Geoff's solos that show more of his upper range. His newest, Till Then, stays in the bassment until the trio of background singers come in. In VoicePlay's Oogie Boogie Song, we get to hear his highest and lowest (at the time) notes.