The music of Pakistan includes diverse elements ranging from music from various parts of South Asia

South Asia

South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 as well as Central Asian

Music of Central Asia

Central Asian music encompasses numerous different musical styles originating from a large number of Asian cultures. Central Asian music most often uses the pentatonic scale....

, Persian, Turkish, Arabic and modern day Western popular music

Popular music

Popular music belongs to any of a number of musical genres "having wide appeal" and is typically distributed to large audiences through the music industry. It stands in contrast to both art music and traditional music, which are typically disseminated academically or orally to smaller, local...

 influences. With these multiple influences, a distinctive Pakistani sound has been formed.
In poetry

Poetry

Poetry is a form of literary art in which language is used for its aesthetic and evocative qualities in addition to, or in lieu of, its apparent meaning...

, the ghazal
is a poetic form consisting of couplet

Couplet

A couplet is a pair of lines of meter in poetry. It usually consists of two lines that rhyme and have the same meter.While traditionally couplets rhyme, not all do. A poem may use white space to mark out couplets if they do not rhyme. Couplets with a meter of iambic pentameter are called heroic...

s which share a rhyme

Rhyme

A rhyme is a repetition of similar sounds in two or more words and is most often used in poetry and songs. The word "rhyme" may also refer to a short poem, such as a rhyming couplet or other brief rhyming poem such as nursery rhymes.-Etymology:...

 and a refrain

Refrain

A refrain is the line or lines that are repeated in music or in verse; the "chorus" of a song...

. Each line must share the same meter.