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.
In the early 1950s it was frequently applied to blues records. Starting in the mid-1950s, after this style of music contributed to the development of rock and roll, the term R&B became used to refer to music styles that developed from and incorporated electric blues, as well as gospel and soul music.