On another note, I just got asked to sing in a wedding next month. Talk about flattering. The interesting angle is that the part I'm going to sing is an alto part, and thus a harmony. I didn't think I had the range to sing it, but it looks like my range has shifted downwards since I was in the children's choir. So, with some practice, it should be fine. I just need to get used to harmonizing instead of singing the melody or the descant.
 My mom was indirectly responsible for this too. She likes to tell people about 'my lovely voice'. I guess I should be more proud of it and not be embarrassed when she tells people, since she's obviously proud of me. I just feel a bit sheepish when she says things like that, because I haven't been in a choir for 10 years.
 Did you know girls voices change during puberty as well? Their voices generally lower in pitch, without the embarrassing squeakiness that boys have.