Final answer:
A trill is the fancy ornament that describes a fast wobble shared with the note above.
Step-by-step explanation:
The fancy ornament that describes a fast wobble shared with the note above is called a trill.
A trill is a rapid alternation between two adjacent pitches. It is commonly represented by a symbol that looks like a wave or zigzag.
For example, if you have a quaver on the note C and a quaver on the note D, you would perform a trill by rapidly alternating between these two notes.