Improvised; without prior preparation, planning or rehearsal.
‘The party began with an impromptu rendition of 'Happy Birthday'.’; ‘an impromptu speech’;
created by improvisation; impromptu; unrehearsed.
(music) A short musical composition for an informal occasion often with the character of improvisation and usually to be played solo.
simple past tense and past participle of improvise
(by extension) Any composition, musical or otherwise, that is created on the spot without preparation.
done or made using whatever is available;
‘crossed the river on improvised bridges’; ‘the survivors used jury-rigged fishing gear’; ‘the rock served as a makeshift hammer’;
Offhand; without previous study; extemporaneous; extempore; as, an impromptu verse.
Something made or done offhand, at the moment, or without previous study; an extemporaneous composition, address, or remark.
A piece composed or played at first thought; a composition in the style of an extempore piece.
an extemporaneous speech or remark;
‘a witty impromptu must not sound premeditated’;
a short musical passage that seems to have been made spontaneously without advance preparation
with little or no preparation or forethought;
‘his ad-lib comments showed poor judgment’; ‘an extemporaneous piano recital’; ‘an extemporary lecture’; ‘an extempore skit’; ‘an impromptu speech’; ‘offhand excuses’; ‘trying to sound offhanded and reassuring’; ‘an off-the-cuff toast’; ‘a few unrehearsed comments’;
without advance preparation;
‘he spoke ad lib’;
An impromptu (, French: [ɛ̃pʁɔ̃pty], loosely meaning ) is a free-form musical composition with the character of an ex tempore improvisation as if prompted by the spirit of the moment, usually for a solo instrument, such as piano. According to Allgemeine musikalische Zeitung, Johann Baptist Cramer began publishing piano pieces under the (sub-)title of (AMZ, Mar.