The Baroque period
i think it's basso ostinato but i don't really know the other one.
Basso continuo - The basso continuo, used throughout baroque music, is a technique by which a harmonic foundation lends support to a melodic line that carries the main melodies of a composition.
In the Baroque era (1600–1750)
Minimalist music: Music based on the frequent repetition (with the slightest variations) of a small musical idea.Glass, Einstein on the Beach (Chapter 55)
This type of accompaniment is known as "basso continuo", which originated during the Baroque period.
Basso continuo
The two main concepts associated with Baroque music are basso continuo and the doctrine of the affections. These were used to create elaborate and emotional musical genres such as opera, cantata, and concerto.
‘Ground Bass ‘means a bass part which is repeated throughout the piece. Is a term used in Baroque Music but has the same meaning as it means a part which is repeated as a bass throughout the whole piece of music to structure it throughout the whole of it.The GroundBass isalso called ‘basso ostinato’ in Italian.hope this washelpfulbecause it was to me LOL
The most typical Baroque accompaniment for a solo melodic instrument or voice is called 'basso continuo'. The chords would be played on a harpsichord or organ, and the bass line would be reinforced by a cello or a similar instrument of the period.
Ornamentation (apex)
characteristic of baroque music: Rhythm tonality melody terraced dynamics texture basso continuo(figured bass) words & music