Soon the music became regina, a repeated melody and choral refrain, which emphasizes vocal improvisation.

Its use in vocal improvisation is comparable to Arabic layālī.

The medium continues to evolve, and vocal improvisation now often develops independently of changes in instrumental jazz.

He goes on to identify seven main types of vocal improvisation used by opera singers in this repertory:

The acoustic medium would provide him "greater vocal improvisation and a freer, folkier feel".

She occasionally participates in select workshops, teaching vocal improvisations to actors and musicians.

Despite poor performance (according to Muradova herself), she was successful mostly due to her vocal improvisation of the role.

This provides rhythmic drive, and may derive from black vocal improvisation.

Free-associative vocal improvisations that ricochet all over the world.

O.K., her sense of pitch sometimes wandered, and it's clear that vocal improvisation isn't her strong suit.