Happy UK Mother's Day! (Ours is in May).
Holy OMG, Pear POOR little guy and poor you too! I can completely sympathise. M has been whinging, crying, moaning, screaming, drooling, snotting, following, crawling up legs, complaining, crying more, screaming more, hitting, not napping, moaning, screaming again, waking up at 1am crying, not going to sleep, passing out, waking up at 3am crying again, waking up at 6 am crying again.... ALL....FREAKING... WEEKEND. I am ready to pull my hair out, bang my head against a brick wall, and scream into a pillow. I don't remember the other two ever being this bad with teeth or maybe my memory suppressed it so I'd be tricked into thinking it was a good idea to procreate again
Oh agnu you have my sympathies as well. I do the same thing with food. Just 1 bite and then you can get down (and then I don't feel like a bad mum for sending them to bed without dinner). Parenting stubborn little boys is an extremely difficult job. Please know that you are not alone and that you are doing a fantastic job.
Poor baby Frus! It will make for some very funny pictures when he's older
I'm afraid I don't have any advice on the flute. I was a choir gal myself 
DH is making a curry for me tonight. I feel so lucky! 