A work recommended particularly for musicians to become aware of their inner possibilities and best exploiting these through knowledge of 'Hara' and biorhythms, and the practice of concentration and r...
Joseph Sellner (1787-1843) was a famous oboe player of his time. In 1825, Sellner published an oboe tutor in three volumes entitled Theoretisch-Praktische Oboen-Schule. Despite the fact that the instr...
