An unfortunate aspect of leitmotif study is the occasional guessing game one must participate in to determine what the theme represents. Most often it's made clear enough to understand provided you're looking for it, but some of the best usages of the technique are much more difficult to evaluate due to subtle usage, over and under usage, and disguised application. I've had several encounters with supposed patterns in a soundtrack that I can't determine the meaning of (or often the existence of a meaning), and sometimes the only way to be sure of a correct interpretation is the confirmation of the composer. Being that this can rarely be depended on, speculations will likely remain as just that.
Today is the six-year anniversary of
Undertale, which bears one of the most infamous video game soundtracks of all time. All music in the game was written by the game's creator Toby Fox, and he is acknowledged as a master composer.
Undertale if full of obvious leitmotifs, and some of them are easy to understand. There are quite a few, however, that I'm personally unsure about. Of these, my personal favorite is the "
Home motif."
The earliest most obvious feature of this motif can be different depending on how you play. If, for any reason, you decide to close the game before reaching the end of the first area, then you will be met with the game's
Start Menu upon opening it again.
By all appearances, this is a very simple and unassuming track; as you progress through the game, you have the ability to add characters to the menu, and the music fills in as you do so.
If you reach the end of the first area without closing the game, then you will hear the theme of the tutorial character's
Home before listening to the menu track. This is a much more dynamic usage of the motif incorporated into a larger piece, and possibly may be considered the leitmotif's point-of-origin.
Whether or not a player realizes the existence of the leitmotif may affect his perceptions concerning the theme. It continues to appear in the game, most notably in a relatively random event associated with a variety TV show that functions as the Underground's primary source of entertainment.
At this point, the leitmotif is associated with several differing contexts with limited straightforward connection. In what is possibly it's most relevant feature, it makes up one-half of the game's title theme, during an event in which the emotional motivation of the currently perceived antagonist (primary obstacle?) is divulged.
In conclusion, I submit that I consider this the theme of the Underground's residents, or perhaps more accurately the "life" of the Underground. The story told to the player through
Undertale is communicated by residents as their own, the theme plays multiple times associated with their media,
Home is notably the first example of proper habitation, and the menu will become more detailed as you recruit residents of the Underground to it. All that being said, I'm not confident in my evaluation; part of me suspects I'm reading too much into it. I should note the likelihood that some "leitmotifs" featured in the game serve questionable thematic purpose, such as the "
Ghost Fight motif," which is associated with three related characters and one unrelated character. Fox has been known to repurpose motifs for multiple reasons beyond thematic story telling, so I leave it up to you whether or not you share my interpretation.
Edit: The motif also features in
Once Upon a Time, which is a cutscene track and more difficult for me to contextualize. It also appears in
Hopes and Dreams, but there's lots of motif references in that piece; it's more meant to be a round-up-retrospective-turned-boss-theme.