Keagan used to sing with me whenever I got to an Eb (the one a tenth above middle C). It has been a long time since I could reach that note. But today, Sharon came over for coffee and started playing a hymn my father loved, In the Garden . I joined in singing, and sang as high as I could (nowhere near Eb.) At the upper range, Keagan joined in. Later, after Sharon left, I tried it again with the recorder on. Here is the result. First you hear me trying to get to the top of my range, then Keagan joins in. I love his singing.