This edition of the original compositions for the standard and non-standard chamber ensembles emerged as a result of the perennial professional engagement in the field of pedagogy, chamber music performance and as a result of creativity in the field of applied music. The main reason for the emergence of this collection is scarce and inaccessible literature for non-standard chamber ensembles. The compositions were written for various instrumental ensembles (duo, trio, quartet, septet, chamber orchestra), and for the instruments combination (string, wood, metal and brass instruments, piano, accordion, guitar, etc.). In some pieces (Tango, Waltz, Bolero) the possibility of replacing the instruments was presented, while in some other compositions the alternative instruments could also be used, where such a possible choice was left to the the performers and bands to make. Collection also includes tunings for all instruments. Stylistic and genre heterogeneity (classical, folk, contemporary style) was applied with the intention for the young musicians – the instrumentalists to get acquainted with the current, modern, close to their age, but still, in relation to the classical chamber music, different stylistic and sound tendencies, only through their performing practice. The diversity in terms of technical and musical demands, allows the collection to be used at all educational levels.