What key/time signature is this song in?

[Sebastian]

Since the piece is in a sharped key signature, I would recommend using A#'s instead of Bb's.

I don't think that's how it works.

nay nay my friend. That's not how it works.

Here's what I'd do:
mm. 18 LH: Bb's as written, since it sounds like a lowered fifth rather than a raised fourth.
mm. 18 RH: B natural as written (with a courtesy natural). That is just V - i (easy)
mm. 22 LH: keep the Bb's, since it's an ostinato (a figure that repeats underneath the melody).
mm. 23 RH: keep the A#. Chromatic ascent.

tl;dr (hardly) you had it right the first time.

Hmmmm, that doesn't seem right because of measures 31 & 32. Measure 31 sounds like a Bb major chord and 32 sounds like a B major chord.....unless I have those measures wrong.

Finished sheet:
[MUS]

[Pianist Da Sootopolis]

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Just need help with the beginning. How should this be notated? It clearly goes into 3/4 after, but I'm not sure what to do about the beginning bit.

[Tobbeh99]

I'm not sure in this specific case. But for these kinds of sections I usually try to find the closes tempo + time signature and change if needed to make it as accurate as possible but also not too complicated. I often also try to make the notes on strong beats, unless they feel like they're on a weak beat.
I think it's some sort of 5/4 and then 3/4's and later I think there is a 4/4 as well. You can also write rubato, indicating that the tempo is a bit loose.

[Olimar12345]

I hear it all as a slightly quicker 3/4 than the rest of the piece, with a ritard towards the end.

[TheMarioPianist]

I hear it all as a slightly quicker 3/4 than the rest of the piece, with a ritard towards the end.

I agree; I'm hearing a quicker 3/4 as well.

Also, I kind of have my own question.

In this song, I'm pretty confident that the beginning key sig is Ab major (even though there are some D naturals). The second and third keys that it goes into are where I get a little confused. The original sheet on site (this is going to be a replacement) has the second key as E major, but I was thinking it could range anywhere from A major to B major (in terms of sharps). For the final key signature, The sheet on site has Ab major, but based on the first chord in that key I thought it should be Db major. Any thoughts would be appreciated. Thanks!

[mastersuperfan]

Can't listen to it right now because I'm not at home, but from memory I can confirm that the first section seems to be Ab major.

I'll check the other sections when I do get home.

[braix]

https://www.youtube.com/watch?v=blge4fEHzoo
time signatures?
I thought 4/4(85bpm) and 6/8 but those are just guesses.

[mikey]

4/4
tempo seems to be around 88

[braix]

Btw time signature changes at 1:20

[mikey]

oh
huh well it's probably 6/8

[Dudeman]

It's definitely 6/8 at 1:20.

[InsigTurtle]

Oh, yeah, I've almost completed this one.
It's 4/4 until minute:seconds and then 6/8 until repeat

[braix]

yay I guessed 6/8 correctly thanks guys

[Pianist Da Sootopolis]

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Just need help with the beginning. How should this be notated? It clearly goes into 3/4 after, but I'm not sure what to do about the beginning bit.

With this track, what do you all think is the rough BPM?

[Dudeman]

I'm clocking it at approx. 74 BPM.