Symphony No. 9 (Beethoven): This refers to Beethoven's ninth symphony as a whole, which includes "Ode to Joy" as its fourth movement.
Choral Symphony: A choral symphony incorporates vocal parts alongside instrumental sections, just like "Ode to Joy."
Melody: Melody refers to sequences of notes that form memorable tunes within music compositions. "Ode to Joy" has several distinct melodic lines that are easily recognizable.