It doesn't do either of those things, but it can float higher and lower!  Khhlio ihhzzzzdand ihhhhn, aaaai ammm sssssssihhh-ihhn.

"Huh, maybe you don't bend like that. I am clapping!" Clap clap. "Professor Dumbledore is not clapping. Willow is not clapping."

Clap clap clap clap.  Oooouuu - ouuu - wwwwwilllohhhh, thhhhhwwwinnnndohhhh?  Thhhhe wwihhhhhhllohhhhh?

"Willow's not a the. Willow is a Patronus. Willow is sitting on Professor Dumbledore." And so on in this vein.

It (Cora? Cora!) learns the names for so many things.  It does not learn for sure whether Willows and windows sound the same because both of them stop touching from happening, but probably they do.  Most things that sound the same are related, it thinks.

After it learns the word 'touching' it makes a happy noise without any name pieces, its best impression of a goodsound.  - And then it occurs to it that maybe it can get the Cleo (or just Cleo, it seems like?) to tell it the name for goodsounds if it tries hard enough??  It attempts EVEN HARDER.

"Are you trying to sing? Is Cora singing, Cora?"

Aiiiiiii - wait, can it make (or, well, attempt) good- and mediocresounds at the same time‽‽  Foods do . . .  Iiiiiiiiammss sssssssssingggginnggg?  Cleohh sss - ssssinggingg Cleeeeo ssingginggggg?

"Sure, I can sing! Um... Mary had a little lamb, little lamb..."

Cleeeo ihhsssssinggginggggggg!!  Ghhhuuuut sh - ghhut jjjab!!

Cleo giggles and finishes the song and takes a little bow.

Cleoooosssinging?  - It copies the bow in case that's important.

Sure, she can do London Bridge.

Cora will keep trying to say 'good job' and 'Cleo singing' until this no longer produces the result of Cleo singing.  And will then switch to Brhhhhuhfffesssssohhhr Duhhhmuhhhldhhhhhhor Whhhhhhillohsssssinging?

"Willow can't sing, silly. Professor Dumbledore can you?"

Professor Dumbledore will oblige with a rendition of the school song to the tune of a randomly chosen Schubert.

Can Professor Dumbledore be persuaded to sing more times as well?

After the second time he's going to Accio a radio and put that on.

!!!!!!

Ghhoodt gooohhhd goood ghhoood shab tchtchtchtchab jab jahhb jahb.

"When there's no words in it, it's music! Singing is a kind of music," says Cleo.

Ssssssssinnnnnnginnnnnnnng.  It points at the radio.  Wwwwwww iiiorhhh nnname?

"That's a radio! It's bringing us music from far away."

Thhatsereeeeidio, hhhhhelllohhhh.  Hhhhhhhelllo, iiiiiohhhhrnnaaame ihhhs thhatssseradiohhhh?  Hhhhhhellohhhhgggg uhhhhhdj - jahhhb.

"Radio," says Cleo. "The radio can't hear. It can make music but it doesn't know you're talking to it."

Cora keeps pointing at the radio and trying to think of names that foods use when they are the tastiest.  It's a difficult task, though, and it doesn't know what Cleo is trying to say, so that's not helpful either.  Iiiornamis rhhhhadio, it tries while it thinks.  - Can it touch the radio?  Maybe even hold it?  Is the radio in any way spongelike?

Cora is not impeded in picking up the radio, though if it nudges the wrong dial it will switch from chamber music to the Daily Prophet Channel and then to the Weird Sisters. The radio is not much like a sponge: it is heavier, smoother, drier, harder, and shaped completely differently.

It's interesting how these goodsounds are much more good than the ones Cleo and Professor Dumbledore produced, and yet there is also something less good about them!  Cora can't really tell what, though.

However, this is much more like the goodsounds that dancing is for!  And so it dances, with flailing arms and spinning floats.