Professional ensembles are groups of musicians, dancers, or actors who perform together in a coordinated manner. These ensembles can vary in size and style, ranging from small chamber groups to large orchestras, and they often specialize in specific genres or types of performance, such as classical music or contemporary dance. In addition to music and dance, professional ensembles can also include theater companies and vocal groups. They typically rehearse regularly to refine their skills and ensure a polished performance. Notable examples of professional ensembles include the New York Philharmonic and the Royal Ballet.