The colonists in Texas were fighting for independence from
the United States,
Spain
Muxico
Both questions

Texas Revolution, also called War of Texas Independence, war fought from October 1835 to April 1836 between Mexico and Texas colonists that resulted in Texas's independence from Mexico and the founding of the Republic of Texas (1836–45)

answer; not notated (at least, not in the traditional sense) and includes many improvised sections and solos;