Well, it's now three weeks later, with 20 minutes practise every day - varying between five pm and ten pm - and I can't say there's a huge amount of improvement. I managed to record this in our bedroom and the only things I have done to it are to remove the odd silences that lead you into a blissful, false "Thank FSM, they've STOPPED!", some of the background noise, like me desperately trying not to snigger, then failing and killing myself laughing, at the end. I think they heard that bit, as they suddenly quit playing fails. Uh, I mean, scales.
You can listen here - but it's not pretty.