The term "Dante Symphony" is not widely recognized in established musicological or literary references as a specific, canonical composition or work. No reliable encyclopedic sources confirm the existence of a symphony formally titled "Dante Symphony" by a major composer, nor is there a well-documented piece by this name in standard classical music repertoires.
It is possible that the term could be used informally or hypothetically to refer to musical works inspired by the writings of Dante Alighieri, particularly his "Divine Comedy." For example, Franz Liszt composed a piece titled "Dante Symphony" (officially "Symphonie zur Divina Commedia"), completed in 1856, which may be the work referenced by this term. This symphony in two movements—Inferno and Purgatorio—was inspired by Dante's epic poem, though it does not include a movement for Paradiso.
However, due to the lack of universal standardization in the use of the term and potential ambiguity in informal references, "Dante Symphony" as a standalone phrase does not correspond to a singular, well-defined work in mainstream encyclopedic records without additional context. Accurate information is not confirmed for any other composition broadly known under this exact title.
Possible usage of the term may include descriptive or programmatic references to music evoking themes from Dante's work, but such usage remains contextual rather than definitive.