Blue Beaker and Mockingbird

I cannot get passed this level! I do everything right, but when I try to take the beaker out of the cauldron, everything blows up. I think it might be something to do with the mockingbird song, because not all three of her notes stay in glass, even if I tap it. It allows me to cork the beaker, but then when I try to take it out of the cauldron it blows up. Please help!!

pk dream 5 and I'm having the same problem. I also think it's because I can only keep 2 of the 3 notes in bottle. If anyone has answer to this one please help. Thanks

Be sure to tap on the glass as soon as the bird flies over to the beaker. Don't even look to see if all three notes are in the beaker.