Musical notes rendered with speed weaving different patterns.

an improvised phrase, often performed at a fast tempo, leading back to the refrain of the composition.

Improvisations of notes in medium and fast tempo

A fast melodic figure taken at least at double the speed in khayal and instrumental performances

Melodic passages which can be in slow speed with a lot of ornamentation or fast passages of varying length and varying range. In the case of vocal music, you can also have boltaans where syllables from the text are used in the Taan patterns.