Glucose Tolerance Test (GTT). GTT is an abbreviation for Glucose Tolerance Test, which is a measure of the amount of glucose present in the blood stream of a person at the time the test is taken. This test is usually done to check for glucose related problems like hyperglycemia or hypoglycemia in the patient.
Contemporary R&B, also known as simply R&B, is a music genre that combines elements of rhythm and blues, soul, funk, pop, hip hop and dance.
Rhythm and Blues (R&B) was, and still is, a term used for a number of post-war American popular music forms. The term is credited to Jerry Wexler when he was editing the charts in Billboard magazine (1947).It was formally introduced to American vernacular in 1949, when it was used in the Billboard chart listings.owever, it's clear that R&B has its origins in the secular folk music of Black American culture-the Blues. From its origin in the South, during the early 20th century, the Bluesâ simple but expressive forms had become, by the 1960s, one of the most important influences on the development of popular American music.