Leonard Schulz (Wien, 1813- London,1860) - L'Indispensable op.40 nº2 (Lento) L'indispensable op.40 is a series of exercises and studies, published in London in 1840. Score (MS) - https://ruinamora.com/leonard-schulz-... Rui Namora - 8 string Romantic Guitar (Jan Tuláček), after J.A. Stauffer (1837)