Dear friends! We a happy to introduce you to our new collections of etudes for clarinet based on Romanian folk melodies composed by Simion Duja. This publication is dedicated to Eugen Verbetsky, promoter of national clarinet school. Many thanks to Mrs. Denise Gainey, DMA Professor of Music, Associate Chair UAB, Department of Music President-Elect, International Clarinet Association and Mr. Doru Albu, Dr., University professor, National University of Arts „G. Enescu” (Iaşi, Romania) for their great review. Also, we thank Mrs. Marcela Mardare and Ceban Liubovi from publishing house „Pontos”. We hope you will enjoy, and it will help improve your performance.