Hey Axelle! Those two clips should load pretty quickly actually, because there are no actual video images, just my voice (the original files were just 635 KiB and 3.89 MiB respectively)!
Renate, thanks! Actually both do reach C (one C in the first one and one C per stanza in the second), and C5 is my effective sustainable upper limit during singing at the moment. I can do quite a few notes higher still but I can only do a few of those in each song, and they not only sound absolutely terrible but also strain my voice (not to mention I always feel like I don't quite have enough power in my lungs to push the notes out), so I generally keep it lower for more control (that's why I lowered the second song by three semitones before singing it, as it originally reached Eâ™5)... Anyway, I am more keen to make it sound better at the moment while keeping that range, so any advice would be welcome 🙂