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.
Where Did R&B; Music Come From? By David Woo ; Updated September 15, 2017 The rhythm and blues genre (R&B) is a result of a great deal of musical evolution, and has a fascinating origin. R&B is an American musical form that continues to influence modern musicians. Racial Origins. The term R&B originated in the late 1940s. In 1948, RCA Victor marketed black music as blues and rhythm, and in 1949 the term rhythm and blues replaced the Billboard category Harlem Hit Parade. Cultural Origins. R&B has grown out of African American culture.