In terms of chords and melody, Rainy Mushroom Ville - A Piece of Phantasmagoria is more complex than the typical song, having above average scores in Chord Complexity, Melodic Complexity, Chord-Melody Tension and Chord Progression Novelty.
Rainy Mushroom Ville - A Piece of Phantasmagoria is written in the key of F Lydian. According to the Theorytab database, it is the most popular key among Lydian keys and the 54th most popular among all keys. The F Lydian scale is similar to the F Major scale except that its 4th note (B) is a half step higher. Music written in Lydian often emphasizes this difference by creating melodies that feature this note. Due to the dissonant interval between the 1st and 4th scale degrees, Lydian is less common in popular music. See the F Lydian Cheat Sheet for popular chords, chord progressions, downloadable midi files and more!