Dhaka University of Engineering & Technology (DUET), Gazipur or DUET is a public university for the study of engineering in Bangladesh. The university offers four-year bachelor's degrees in Computer Science and Engineering, Civil Engineering, Electrical and Electronic Engineering, Industrial and Production Engineering, Mechanical Engineering, Textile Engineering and Five-years Bachelor of Architecture. Only the Diploma in Engineering holders can avail themselves of enrolling here for bachelor's degree in Engineering and Architecture. It is one of the nine PhD granting research universities of Bangladesh.

A duet is a musical composition for two performers in which the performers have equal importance to the piece. It is often used to describe a composition involving two singers. It differs from a harmony, as the performers take turns performing a solo section rather than performing simultaneously. In classical music, the term is most often used for a composition for two singers or pianists. A piece performed by two pianists performing together on the same piano is referred to as "piano duet" or "piano four hands". A piece for two pianists performing together on separate pianos is referred to as a "piano duo".