Abstract: This article develops a comprehensive approach to classifying instrumental ensembles featuring the domra. It aims to discern the underlying principles that can be used to create various models of such ensembles. The author recommends analyzing the various aspects of the phenomenon being studied from different perspectives: as music groups and from the viewpoint of music compositions composed for these groups. This article examines and compares different models of concert groups based on the number of members and instrumental components, as well as the unique genre and style characteristics of instrumental ensembles featuring the domra and their collaborations with composers. This classification method helps comprehensively cover the work of a large number of musicians, both members of ensembles and composers. Constructing various systems for classifying instrumental ensembles can aid in the examination of the existence of such groups in contemporary music culture. The author concludes that, at present, Russia's spectrum of music performance contains a vast range of ensembles made up of various instruments and different numbers of members. The diversity of these groups’ genres and styles is reflected in their repertoires, from folk to classical music and modern composing schools to jazz, rock, pop, and performance.