Ex tempore

Ex tempore (Latin for "out of the moment“) has two meanings:

"Extempore" or "ex tempore" refers to a stage or theater performance that is carried out without preparation or forethought. Most often the term is used in the context of speech, singing and stage acting. Some kinds of oral poetry depend on a certain degree of extemporization, including the couplet, the Gstanzl, and the limerick. Avadhanam performance of India requires high level of extemporisation to create hundreds of poems in different styles in front of large audience.