noun
rhapsody
RAP-suh-dee/ˈræpsədi/
An exuberant expression of strong feeling.
The pianist's performance becomes a rhapsody of strong feeling that moves the audience.

Etymology
“Stitching songs together” described epic verse recitation. The later sense “rambling composition” may have led to an enthusiastic outpouring; the musical use names a free-form composition.
In context
It’s the most classical bit of Gershwin’s rhapsody
More examples
- He launches into a rhapsody over the bakery's fresh bread.
- Her letters contain rhapsodies about the beauty of the mountains.
- The review is a rhapsody in praise of the young actor.
Forms
rhapsody · rhapsodies
rhapsodize verb — To speak or write with great enthusiasm.
rhapsodic adjective — Expressing strong feeling with great enthusiasm.