A.B. Quintanilla

Abraham Isaac Quintanilla III (born December 13, 1963), better known as A.B. Quintanilla III or A.B. Quintanilla, is an American record producer, songwriter, and musician. He is the older brother of "The Queen of Tejano music" Selena. Along with Selena, his other sister Suzette, and his father Abraham, he became a member of Los Dinos in 1980 which would later include Selena's husband (later widower) Chris Pérez as a guitarist. As a member of Los Dinos, A.B. would play bass guitar, produce and write songs for Selena which became successful singles such as "Como La Flor", "Amor Prohibido" and "No Me Queda Más".

Career

While living in Lake Jackson, Texas, A.B. learned to play the guitar and bass. Alongside Selena, his sister Suzette, and their father, Abraham, he became a member of the successful band Los Dinos. A.B. also became Selena's producer.

He co-wrote Selena's hit songs like "Como La Flor" (Like A Flower) and "Amor Prohibido" (Forbidden Love).

A.B.'s sister, Selena, was murdered on March 31, 1995, which greatly devastated him. He helped produce "Como Te Extraño" (How I Miss You) by Pedro "Pete" Astudillo, which was written for Selena as well as Astudillo's late grandmother. The song earned Astudillo a Premios Lo Nuestro award for Best Song of the Year in 1996.

Ordered pair

In mathematics, an ordered pair (a, b) is a pair of mathematical objects. The order in which the objects appear in the pair is significant: the ordered pair (a, b) is different from the ordered pair (b, a) unless a = b. (In contrast, the unordered pair {a, b} equals the unordered pair {b, a}.)

Ordered pairs are also called 2-tuples, or sequences of length 2; ordered pairs of scalars are also called 2-dimensional vectors. The entries of an ordered pair can be other ordered pairs, enabling the recursive definition of ordered n-tuples (ordered lists of n objects). For example, the ordered triple (a,b,c) can be defined as (a, (b,c)), i.e., as one pair nested in another.

In the ordered pair (a, b), the object a is called the first entry, and the object b the second entry of the pair. Alternatively, the objects are called the first and second coordinates, or the left and right projections of the ordered pair.

Cartesian products and binary relations (and hence functions) are defined in terms of ordered pairs.

A&B

A&B may refer to:

AB

AB, Ab, or ab may refer to:

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