Reording ActiveRecord Objects

Hey everyone! I have a list of ActiveRecord Objects I am trying to reorder by the lowest BPM to the highest. The last 5 objects I want to be in reverse from largest to the smallest. I've tried a few things but the issue is once I get what I want I can know longer access the attributes because it is now an Array. I got something close...I think... this is what I have...

@playlist = Playlist.find(params[:id])
     sorted_songs = @playlist.songs.order(tempo: :asc)
     warm_up = sorted_songs
     cool_down = sorted_songs.order(tempo: :desc).limit(5) #sorted_songs.reverse  #maybe try 
     @workout_songs = warm_up + cool_down

This is what is returned...<br>

Hey Ya! - Radio Mix / Club Mix - OutKast | TEMPO: 79<br>

Fuego - Phish | TEMPO: 83<br>

Started From The Bottom - Drake | TEMPO: 86<br>

Free - Phish | TEMPO: 86<br>

Drop It Like It's Hot - Snoop Dogg | TEMPO: 91<br>

This Is How We Do It - Montell Jordan | TEMPO: 103<br>

Wombat - Phish | TEMPO: 104<br>

Hot In Herre - Nelly | TEMPO: 107<br>

SexyBack - Justin Timberlake | TEMPO: 116<br>

Wrecking Ball - Miley Cyrus | TEMPO: 119<br>

Blurred Lines - Robin Thicke | TEMPO: 120<br>

Up N' Down - Britney Spears | TEMPO: 120<br>

Born This Way - Lady Gaga | TEMPO: 123<br>

California Gurls - feat. Snoop Dogg - Katy Perry | TEMPO: 125<br>

We Found Love - Rihanna | TEMPO: 127<br>

I Wanna Go - Britney Spears | TEMPO: 129<br>

Dark Horse - Katy Perry | TEMPO: 131<br>

Big Pimpin' - JAY Z | TEMPO: 138<br>

Partition - Beyoncé | TEMPO: 175<br>

Gooey - Glass Animals | TEMPO: 183<br>

Hey Baby - No Doubt | TEMPO: 187<br>

Hey Ya! - Radio Mix / Club Mix - OutKast | TEMPO: 79<br>

Fuego - Phish | TEMPO: 83<br>

Started From The Bottom - Drake | TEMPO: 86<br>

Free - Phish | TEMPO: 86<br>

Drop It Like It's Hot - Snoop Dogg | TEMPO: 91<br>

As you can see it repeated my first songs instead of giving me the last 5 songs (Dark Horse - Hey Baby).

Can anyone help me??? This is a toughy!

Thanks!