Recommended
The UNDERTALE Soundtrack is a 2015 soundtrack album by Toby Fox, for the game of the same name.
The soundtrack is a mix of chiptune style music (such as “Bonetrousle”), jazz, lounge (for instance, “Hotel”), chipmetal (i.e, “MEGALOVANIA”), and classicalesque music. It includes all of the songs heard in the game (and then some!), including lesser known incidental songs found in the game (such as the song “Bird That Carries You Over A Disproportionately Small Gap”). These are all short but still pretty sweet.
Of special note are the various leitmotifs that the soundtrack calls back to throughout the duration of the soundtrack. They are re-iterated on and repurposed throughout the soundtrack. There are several of these leitmotifs (a complete list of which can be readily found online), each of them helping the soundtrack's individual tracks be instantly recognizable; whenever one hears a song from the soundtrack on YouTube, for instance, you can instantly register any given song as from this soundtrack, since these leitmotifs are very memorable and (as mentioned previously) are reprised throughout the entire soundtrack.
There's a lot of emotions that this soundtrack evokes - intrigue, comfort, and triumph, etc. Whatever the case may be Fox's style and versatility here leave a lot for the listener to get out of this soundtrack.
One mild shortcoming of the album is that some of the tracks here don't stand that well on their outside of the context of the game (such as "Ooo"), but these types of tracks are very few and far between.
I have way too many favorites from this to list them here, but "Once Upon a Time", "It's Raining Somewhere Else", and "Undertale" are just some of the many highlights to be found on this soundtrack.
Overall, the Undertale soundtrack is a great soundtrack by Toby Fox. Its wide musical variety, leitmotifs, overall memorability and emotive style make it a soundtrack that is certainly worth listening to.