Question

what major technical innovation did gene kelly pioneer, which is evident in his dances in everyday settings (like dancing with a mop or in the rain)?
integrating the camera as a partner with choreography
the development of tap shoes with metal plates
the use of the psoas muscle for internal rotation
choreographing all dances exclusively in a turned - out position

Explanation:

Gene Kelly was known for integrating the camera as a partner with choreography. This allowed for dynamic shots that enhanced the storytelling and visual appeal of his dance sequences in everyday settings. For example, in Singin' in the Rain, the camera movements complemented his dance with the mop and in the rain, creating a seamless blend of movement and cinematography. The other options are incorrect: tap shoes with metal plates were not his innovation (they were already in use in tap dance traditions), the use of the psoas muscle for internal rotation is a general anatomical aspect of movement not a unique innovation of his, and choreographing all dances exclusively in a turned - out position is a ballet technique (he incorporated various styles but not this as a unique innovation).

Answer:

Integrating the camera as a partner with choreography