幻想曲|げんそうきょくgensoukyoku[3]nakadaka (mid-high)

1. noun, musicfantasy; fantasia

• SynonymファンタジーNeutralLoanword for fantasy works such as novels and games; common in everyday use and broader in scope than 「幻想曲」, which is only a piece of music.
• SynonymファンタジアNeutralLoanword that can mean a fantasia (the musical piece) or a work depicting an imaginary world; relatively uncommon. 「幻想曲」, by contrast, refers only to music.

For a free-form musical piece, use 「幻想曲」. For fantasy-genre works, use 「ファンタジー」. 「ファンタジア」 can mean either the music or an imaginary-world work, but is less common.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 作曲者さっきょくしゃの想像力そうぞうりょくや自由じゆうな表現ひょうげんによって作つくられた、形式けいしきにとらわれない音楽おんがく作品さくひん。