Scootaloo: (3) - Antecedent, Once!, Gone (Learned to Fly)
Luna: (17) - Nightfall [14], Forgotten, Reign of a Fallen Princess, Luna Gets Her Cutie Mark
Celestia: (8) - Overture, With Poise, Nightfall, Ride, The Long Night, Lament, Between the Two of Us, Dawn, Summer Sun Celebration
Rainbow Dash (4): Rocket To Insanity [4]
Pinkie Pie (7): Twitch (Unreleased), Rocket To Insanity, [REDACTED x5]
Octavia (1): Up Her Sleeve
Lulamoon/Trixie (19): Epimetheus, Someone Like Her [18]
Twilight Sparkle (7): Entrance Exam, Great and Powerful, Lights Out, The Show (of Her Life), Curtain Call, Destiny I/II
Discord (1): Trapped In Stone
Chrysalis (10): Changed: A Dramatic Tale of A Girl and All The Love In the World [10]
The Narrator (??): The Solara Chronicles [??]
Solara (?): Tracks off The Solara Chronicles
The Prophet (?): The Girl With The Sun In Her Eyes [?]
[MYSTERY PONY] (47): MYSTERY ALBUM [47]
Sweetie Belle (5): Antecedent, Sweetie Belle (Soul), [REDACTED x3]
Applejack (2): [REDACTED x2]

So winning the race for the character with the most songs is Mystery Pony! How mysterious! Followed by Lulamoon with 19 tracks! In released songs, however, we have Luna and Celestia in the lead with 17 and 8 respectively.

Also, consider this the first post where I reveal EVEN MORE CONCEPT ALBUMS.

OH MAN, HOW MANY IS LASFAS WORKING ON AT ONCE?!

(Tarby’s) Forever Broken
Someone Like Her
Changed: A Dramatic Tale of a Girl and All the Love In the World
The Solara Chronicles (Three Albums)
The Girl With The Sun In Her Eyes
and of course:
Mystery Smash Concept Album

Oh man, I love writing these.

Now I just need to y'know, like, actually work on them some more.

I’m gonna die.