Utilização de madeiras nativas moçambicanas na produção de instrumentos musicais, estudo de caso: madeiras para marimba

Abstract

The present research was carried out with the main objective of contributing to a more rational use of Mozambican woods in the production of various musical instruments, in particular the marimba. To achieve the objective, in a first phase, three provinces in Mozambique were selected, namely Inhambane (Zavala), Maputo, Sofala (Beira); and countries that manufacture the same instruments made in Mozambique. In the second phase of the research, (i) the identification of native Mozambican wood species through a literature search and a questionnaire applied to a sample consisting of 6 artist manufacturers, (ii) description of the physical and mechanical properties of the identified species, (iii) identification of wood species used in other parts of the world and (iv) comparative analysis of the properties of Mozambican species with species used in other parts of the world, using density, dynamic modulus of elasticity, resilience coefficient as comparison parameters and dynamic quota. The survey results revealed the existence of 22 Mozambican wood species used in the manufacture of various musical instruments in the selected provinces, most of which are traditionally used by manufacturers to make marimbas. Among the woods used to make marimbas, it was observed that Mwenje (Ptaeroxylon obliquum) is the wood most used by manufacturers to make marimba keys, but due to its rarity, manufacturers select alternative woods, such as Pau-Preto (Dalbergia melanoxylon), Umbila (Pterocarpus angolensis), all of which are easily obtainable. The description of the physical and mechanical properties of the Mozambican species and those used in other parts of the world showed that they all have excellent qualities and properties, obtaining good results when used. In the comparative analysis of Mozambican woods with those used, it was observed that Pau-Preto (Dalbergia melanoxylon), Mwenje (Ptaeroxylon obliquum), Jacarandá-do-Pará (Dalbergia nigra) and Pau-Rosa (Aniba rosaeodora) fulfill the requirements for marimba keys, but in terms of density the Pau-Preto and Mwenje {Ptaeroxylon) (TRADUÇÃO NOSSA)