"Until Next Time (Nightcore)" refers to a fan-made remix of Until Next Time, a piece of music from Deltarune, a game created by Toby Fox. Deltarune has a highly praised soundtrack, and Until Next Time is one of its more atmospheric, introspective pieces. It's often used as a reflective or emotional closing track, with a calm, almost bittersweet melody. The "Nightcore" version speeds up the track and increases its pitch, which is typical of the Nightcore genre. Nightcore remixes are usually characterized by an upbeat tempo, higher pitch, and often sound more energetic than the original. This style of remixing is especially popular for video game music, as it can give the original a fresh, lively twist. Would you like to know more about the song itself or its context within Deltarune?