To adress your notes:
- I think it's clear enough with the double barlines alone. Besides, anyone playing this will probably be aware of how it fits together in the game.
- The key signature as you have it is fine, even though the track does dance it around a little. It dips into some C-centric stuff in the first half, but the second half is made up of 2 I-IV-V-I patterns, so all in all the cadence is definitely centered around a tonic of G major.
- m37-39 looks great like that! If you want you could add slurs to each fourth-eighth pattern but I think it's clear what the arranger's intent here is.
Sounds good. Thanks!

- Slurring: I think the slurs you have are great, and help show the performer how to structure their playing. That said, I think the first page in particular is a little sparse, so looking over it would be appreciated.
Fair enough. I've added some more slurs. I haven't added any to m.5-12 mostly because, according to what Libera said to me once (which I may be misusing here), slurs are best when they show contrast. Since the phrasing for m.5-12 is the natural phrasing and there aren't any additional articulations, I feel that adding slurs here wouldn't do anything to contrast. But, I reserve the right to be wrong here.
- m4 & m40: I think one continuous roll on beat 3 would more accurately reflect the original
Nuuuuuu don't make me do it... :'( Unfortunately, I agree and I've added it, I just wish it wasn't such a hassle to do in Finale/MuseScore sometimes...
- m5-12: The LH pattern sounds like it does in m37-39, with beats 2 and 4 not sustained as long as 1 and 3. Changing note lengths and/or adding slurs would help make this distinction.
Yeah, this was related to my 3rd point and I originally had it as such, but I wasn't sure, so I just changed it back because it's cleaner. Given that m.37-39 looks good to you, then m.5-12 are fine too.
- m18 b4: The D in the LH chord is an octave lower
- Same thing with m20, I think the B might also be lowered here
Good catch! In fact, I think the m.20 b.4 G major chord was an entire octave lower, not just the B & D.
- m21-24: I feel like the LH could use some more slurs. In the RH, I would recommend writing the staccato dotted eighth notes as just regular eighth notes (no staccato). Additionally, I think beaming over the resulting and already existing 16th rests would look neat.
I forget about beaming over rests. I agree, this looks nice!
- Beat 1 in the LH of m21-23 is missing a C just above the A.
- Beat 1 in the RH of m25, 27 & 29 is missing an F just below the A.
Yep, you're right! I've added those.
- I think the C on beat 2 of m28 is an octave lower.
I disagree. When I slow it down and raise the pitch an octave, I can clearly hear an ascending C major chord: E-G-C.
- m32: It might be worth either moving the C in beat 2 to the LH, or copying it over and adding parentheses.
Yeah, I felt that was awkward, especially contrasting the parallel structure of measure 28, so this is a good fix!
- m39 beat 3: I don't hear the G in the RH.
I do and I remember spending quite a while on this. It's really subtle, but even now when I slow it down, I can clearly hear a F-G resolution across beats 2.5-3 and that G doesn't come from anywhere else, so I'm pretty sure it's not a harmonic or from a sustain. It may be too subtle to care, but I'm pretty sure it's there.
- the rit. markings and similar are best written above the staves.
Yep. Something I've learned through this that I didn't know prior!
Does the copyright have 2 years in it because this track was released in a later update? I'm not that familiar with New Horizons lore :p
Correct. Animal Crossing: New Horizons was released in March 2020, just a couple weeks after the pandemic quarantines started (which I couldn't have been more happy to have during that rough time

). However, the game received several major patches to add lots of additional content throughout 2020 and 2021. This song (and the corresponding activity) was added in the last major patch, v2.0, in November 2021.
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Alright, that was quite a bit, but I really, really appreciate all the feedback, Xiao! Files have been updated accordingly.