 Ray 's regular film editor was Dulal Datta , but the director usually dictated the editing while Datta did the actual work . Because of financial reasons and Ray 's meticulous planning , his films were mostly cut in @-@ camera ( apart from Pather Panchali ) . At the beginning of his career , Ray worked with Indian classical musicians , including Ravi Shankar , Vilayat Khan , and Ali Akbar Khan . He found that their first loyalty was to musical traditions , and not to his film . He had a greater understanding of Western classical forms , which he wanted to use for his films set in an urban milieu . Starting with Teen Kanya , Ray began to compose his own scores . 
