Using the root proportion to design an oud
Mitra Jahandideh, Shahab Khaefi, Ahanali Jahandideh, Masoud Khaefi · 2010
Oud is a plucked pear shaped instrument. It is the most popular instrument in the Middle Eastern music. The European lute originates from the Arabic instrument known as the UD. The neck of oud has not frets. The most ordinary string combination is five pairs of strings tuned in unison and a single bass string, although up to thirteen strings may be found. Another typical feature of the oud is its head, with the tuning pegs bent back at an angle to the neck. On the other hand, the root proportion is a sequence of irrational numbers (v2, v3, v4 and v5), each of which possesses its own individual characteristics. These have been used in designing musical instruments and we usevd2 to design body outline of oud. The rational underlying this study was to use root proportion in designing an oud. Computer Aided Three-dimensional Interactive Application (CATIA) multi-platform CAD/CAM/CAE commercial software was used to draw the mentioned designs.